In this article, students can find the MCQ of Magnetic Effect of Electric Current. This MCQ of Magnetic Effect of Electric Current have been prepared on the basis of the CBSE syllabus for Class 10 Science for Academic session 2021-22. These MCQ questions are based on Class 10 Science Chapter 13 Solutions, which is the most important chapter of Physics of class 10.
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| MCQ of Magnetic Effect of Electric Current |
MCQ of Magnetic Effect of Electric Current
MCQ of Magnetic Effect of Electric Current is very important regarding CBSE board exams 2021-22.
Correct answers with Explanation have also
been given so that you can better understand the basic concept of questions.
For detailed and thorough study you can
also check NCERT Solution of Class 10 Science.
The students can download
Magnetic Effects of Electric Current Class 10 MCQ with Answer in PDF
format from the link given at the end below.
Class 10 magnetic effects of Electric Current MCQ
Chapter 13 Magnetic Effects of Electric Current Class 10 MCQ with Answer
Choose the correct answer of MCQ of magnetic effect of electric current :
1. In a current-carrying
conductor, the direction of magnetic field is, determined by
(a) Maxwell’s right-hand
rule
(b)Fleming’s right-hand rule
(c) Fleming’s left-hand rule
(d)Faraday’s left-hand rule
Correct answer- (a)
2. The magnetic force lines
always begin from
(a) south pole to north pole
(b) north pole to south pole
(c)middle to the north pole
(d)middle to the south pole
Correct answer-(a)
3. A compass needle is
(a)A bar magnet
(b)A needle
(c)An electro-magnet
(d)None of above
Correct answer-(a)
4. Choose the incorrect
statement
(a)The right-hand thumb rule is
used to find the direction of magnetic field due to current-carrying conductors.
(b)The difference between the
direct and alternating current is that the direct current flows in one direction
and the alternating current changes its direction periodically.
(c)Fleming’s right-hand rule is
used to find the direction of induced current.
(d)In India, the frequency of the alternating current is 100Hz.
Correct answer –(d)
5. When a current-carrying
conductor is placed in a strong magnetic field, the direction of force, is
determined by
(a) Maxwell’s right-hand rule
(b)Fleming’s right-hand rule
(c) Fleming’s left-hand rule
(d)Faraday’s left-hand rule
Correct answer- (c)
6. An electric generator acts
as-
(a)A converter of energy
(b)A source of electrical
charge
(c)Source of power
(d)An electromagnet
Correct answer- (a)
7.The magnetic effect of current was discovered by
(a)Henry
(b)Orested
(c)Farady
(d)Fleming
Correct answer- (b)
8. Electromagnetic induction is
involved in
(a)rotation of the coil of an electric motor
(b)charging a body with negative
(c) production of current by relative motion
between a magnet and a coil
(d) generation of magnetic
field due to a current-carrying solenoid.
Correct answer- (c)
9. The main power supply of a
house is a 2A ampere fuse. How many 50 watt bulbs can be used in the house at
the normal voltage?
(a)9
(b)7
(c)4
(d)8
Correct answer-(d)
10. The direction of magnetic
field associated with a current-carrying conductor can be found by.
(a) Right-hand thumb rule
(b)Fleming’s left-hand rule
(c)Fleming’s right-hand rule
(d)None of above
Correct answer- (a)
11. The strength of magnetism of
a core depends on
(a) The magnitude of current
flowing
(b) Turns of coil
(c) The material of the core
(d) All the above
Correct answer- (d)
12. Which statement is incorrect
about the fuse wire
(a) It should be introduced in a live wire
(b) It should be introduced in parallel
(c) It does not affect the voltage of current
(d) It is a safety device in the circuit
Correct answer- (b)
13. According to Fleming’s right-hand rule, the index finger gives the direction of –
(a)Induced current
(b)Magnetic field
(c)Motion
(d)Force
Correct answer-(b)
14. A positive charge projected
towards the east is deflected towards the north by a magnetic field, the magnetic field
is directed
(a)Upward
(b)Downward
(c)Towards the west
(d)Towards the south
Correct answer-(b)
15. Which statement is incorrect
about the domestic circuit
(a)Fuse-wire and all switches
should be in live-wire
(b)Fuse-wire and all switches
should be in series
(c)Earth-wire should be used
(d)The joints and connections
of switches should be loose
Correct answer- (d)
16. A resistance used in a
circuit, is divided into two equal parts and they are connected in parallel,
the resistance of the circuit.
(a) is decreased
(b) is increased
(c) First it will decrease and then increase
(d) first, it will increase
and then decrease
Correct answer- (a)
17. A transformer changes
(a) The electrical energy
(b)the resistance
(c) Electrical potential
(d)direction of current
Correct answer- (c)
18. An electric generator
actually acts as
(a) a source of electric charge
(b)a source of heat energy
(c) an electromagnet
(d)a convertor of energy
Correct answer- (d)
19. Electric appliances having the metallic body, are connected with, for safety purpose
(a) a fuse wire
(b) an earthing
(c) neutral wire
(d) are connected in a parallel arrangement
Correct answer- (b)
20. In domestic circuits, the
colour of live wire is
(a) black
(b)red
(c) green
(d)not certain
Correct answer- (b)
21.According to Fleming’s left-hand rule, the thumb gives the direction of
(a)Magnetic field
(b)Force
(c)Current
(d)None
Correct answer-(a)
22. Field inside a solenoid is-
(a)Inversely proportional to the number of turns
(b)Directly proportional to its
length
(c)Directly proportional to
current
(d)Inversely proportional to
current
Correct answer-(c)
23. In your town the cost of
electricity is 60 per unit. You pay for-
(a)Electric energy
(b)Electric current
(c)Electric charge
(d)Electric power
Correct answer-(a)
24. A piece of slip ring is used
in
(a)AC motor
(b)DC generator
(c)AC generator
(d)DC motor
Correct answer-(c)
25. In domestic circuits the
colour of an earth wire is
(a) black
(b)red
(c) green
(d)not certain
Correct answer- (a)
26. The magnetic field inside a
solenoid is-
(a)Uniform
(b)Circular
(c) Non-uniform
(d)None of above
Correct answer-(a)
27. In a domestic circuit, all
electric appliances are connected in
(a)Series
(b)parallel
(c)Both series and parallel
(d)Neither series nor parallel
Correct answer- (b)
28.In domestic circuits the
colour of earth wire is
(a) black
(b)red
(c) green
(d)not certain
Correct answer- (c)
29.A magnet attracts-
(a)all metals
(b)plastics
(c)iron and steel
(d)non- metals
Correct answer- (c)
30. To detect the presence of
current in a circuit we use
(a) Voltmeter
(b) Ammeter
(c) Thermometer
(d)Galvanometer
Correct answer- (d)
31. The north pole of the earth
magnet is in the –
(a)Geographical north
(b)Geographical east
(c)Geographical west
(d)Geographical south
Correct answer-(d)
32. The magnetic field l is the
strongest at –
(a)at north pole
(b)at south pole
(c)in the middle part of the
magnet
(d)at both poles
Correct answer-(d)
32. An electric motor –
(a)Converts mechanical energy
into electrical energy
(b)Converts electrical energy
into mechanical energy
(c)Is based on the magnetic effect
of electric current
(d)All above
Correct answer-(b)
33.At the time of short circuit, the electric current in the circuit –
(a)Not changed
(b)Reduces
(c)Increases extremely
(d)None of these
Correct answer-(c)
34.The voltage and frequency of
AC current which we receive in our houses, is
(a) 440 V, 100 HZ
(b)30 V, 75 Hz
(c)220 V, 50 Hz
(d)110 V, 100 Hz
Correct answer- (c)
35. The core of an electromagnet is made of
(a)Brass
(b)Soft iron
(c)Aluminium
(d)Steel
Correct answer-(b)
36. The region around a magnet
in which force of attraction and repulsion is detected is called-
(a)Electromagnetic induction
(b)Electric field
(c)Magnetic field
(d)All above
Correct answer-(c)
37. The strength of magnetic
field inside a long current-carrying solenoid is-
(a)Maximum at the ends
(b)Minimum in the middle
(c)Increase from one end to the
other
(d)Same at all points
Correct answer- (b)
38. The device uses a
permanent magnet-
(a)Loudspeakers
(b)Galvanometer
(c)Both (a) and (b)
(d)None of above
Correct answer-(c)
39. A generator works on the
basis of –
(a)Magnetic effect of electric current
(b)Heating effect of electric
current
(c)Electromagnetic induction
(d)None of above
Correct answer-(c)
40. Commercial electric motors
do not use
(a)An electromagnet to rotate
the armature
(b)A permanent magnet to rotate the armature
(c)Coil carrying a large number
of turns of conducting wire
(d)A soft iron on which the
coil wound
Correct answer-(b)
41.A fuse in an electric circuit is
used to prevent –
(a)Short circuit
(b)Overloading
(c)Both (a) and (b)
(d)None
Correct answer-(c)
42. A generator has the following
essential part /parts-
(a)Armature
(b)Field magnet
(c)Slip rings with brushes
(d)All above
Correct answer-(d)
43. The potential of a neutral
wire is
(a)Maximum
(b)Minimum
(c)Zero
(d)Both (a) and (b)
Correct answer-(c)
44. The most important safety method used for protecting home appliances from short
circuit is
(a)Use of fuse
(b)Earthing
(c)Use of stabilizer
(d)Use of switch in circuit
Correct answer-(a)
45. The magnetic field lines –
(a)Do not interest
(b)Intersect at right angles to
one another
(c)Cross at an angle of 60°
(d)Cross at an angle of 45°
Correct answer-(a)
46. Magnetic field at the centre
of a circular coil of radius ‘r’ through which current ‘I’ flows is
(a)Inversely proportional to I
(b)Directly proportional to r
(c)Directly proportional to I
(d)Inversely proportional to r
Correct answer-(c)
47. Which one the given has its
working based on electromagnetic induction?
(a)voltmeter
(b)Transformers
(c)Solenoid
(d)Ammeter
Correct answer –(b)
48. Material of the core of a
strong magnet is
(a)soft iron
(b)copper
(c)plastic
(d)steel
Correct answer- (a)
49. Batteries are source of
………………………..current.
(a)Alternating current
(b)Direct current
(c)Both (a) and (b)
(d)None of these
Correct answer-(b)
50. A current-carrying wire
produces-
(a)Electrical field
(b)Magnetic field
(c)Both electrical field and magnetic field
(d)Neither electrical field
nor magnetic field
Correct answer-(c)
51.Magnetic field in a current carrying conductor placed
in a magnetic field changes due to
(a)Change in current in a conductor
(b)Relative motion between
conductor and magnet
(c)Both (a) and (b)
(d)None of above
Correct answer-(c)
51.The unit of magnetic field
is ……………
(a)Tesla
(b)Weber
(c)Ampere
(d)Joule
Correct answer-(a)
52. To convert an Ac generator into a DC generator
(a)slip rings and brushes
should be used
(b)split rings called
commutators are used
(c)a rectangular wire loop has
to be used
(d)a stronger magnetic field
hat to be used
Correct answer-(b)
Class 10 science chapter 13 fill in the blanks
you can also read the following fill in blanks of MCQ of Magnetic Effect of Electric Current . These will help you to understand the chapter thoroughly.
Chapter 13 Magnetics Effects of Electric Current class 10 ScienceFill in the blanks
1. Solenoid
acts as a ............... management.
2. Magnetic
field exerts a force on a ............... conductor.
3. The direction of the induced current is
given by……………
4. In a solenoid, if magnitude of the current
is ................, the strength of magnetism is decreased.
5. The field lines inside the solenoid are
in the form of ………….. straight lines.
6. The
current produced in a circuit, by rotation of a coil in a strong magnetic
field, is called...............
7. The
device that can convert mechanical energy into electrical energy, is called...............
8. From
grid stations electricity is supplied at ............... voltage.
9. In houses, electrical appliances are
connected in …………………combination system.
10 A
current of ............... ampere is called power.
11. Switch
is always used in ............... wire.
12. A
fuse wire is always introduced in a live wire in...............
13. When
the magnitude of current in a circuit exceeds the estimated limit, it is called...............
14. An
electric appliance with steel body, should be connected to...............
15. The
alloy of fuse wire has 63% tin and 37%...............
16. A
live wire in a domestic circuit is of ............... colour.
17. An
electric appliance of 1 kW is used for 2 hours, the energy consumed is
............... units.
18. Like
poles of a magnet ............... one another and unlike poles ...............
one another.
19. The
magnetic field, inside a solenoid is ............... at all the points.
20. A generator or dynamo
converts…….into ……………energy.
21................
is used to detect the presence of current in a circuit.
22.15
A current rating is used for appliances with ............... power rating.
23. The magnetic field of a solenoid
carrying a current is similar to that of a …………………..
24. A coil of circular turns of insulated
copper wire in a cylindrical shape is called a …………….
25. In
our houses we receive AC electric power of............... V with a frequency of...............
Hz.
26. The magnetic field lines emerge from…………….pole and merge at ………………pole.
27. For
protecting the circuit from overloading or short-circuiting, should be used.
28. At the Centre of the current-carrying loop,
the magnetic field is……………..
29. A …………………………….field exists in the region surrounding a magnet, in which the
………..of the magnet can be detected.
30. A compass needle is a small………………………
31. A generator or dynamo works on the
basis of ………………
32. Production of induced current in a
coil placed in a magnetic field is due phenomenon……………
33..
magnetic field in a current-carrying conductor placed in a magnetic field
changes due to relative motion between…………and …………
34.………………………..can occur when live wire and
neutral wire come into direct contact.
35. Magnetic field is a quantity of
both…………..and …………………
36.The direction of magnetic field
associated with a current carrying conductor can be find by………………………….rule.
37. Magnetic field produced by a current-carrying conductor at a given point depends directly on the ……………… Passing through it.
38. When a current flows through a wire, it
produces………………….effect around it.
39. The region where magnetic field lines
apart from each other represents a (weak/strong)…………………………..magnetic field.
40. A current-carrying solenoid having a soft
iron core is called……………….
41. The unit of a magnetic field is ………………………
42. Batteries are source of
………………………..current.
43. A natural magnet is an iron ore
called…………………..
44. The basic cause of induced emf is the
change of………………….in the circuit.
45. The
potential of a neutral wire is…………..
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