Class 10 Science Magnetic Effects of Electric Current MCQs Online Test

Magnetic Effects of Electric Current is one of the most important science chapters in class 10. We have Magnetic Effects of Electric Current class 10 multiple-choice questions available online to help you get better at science. Experts in the field have produced these Class 10 Magnetic Effects of Electric Current Multiple Choice Questions. Students can have a better understanding of complex science ideas by using Magnetic Effects of Electric Current Class 10 Multiple Choice Questions. We’ve taken the effort to offer something special that can make science enjoyable. Practice the science multiple-choice questions that we have provided on our website with enjoyment.

The MCQ for class 10 Magnetic Effects of Electric Current was created using the most recent math curriculum from CBSE. You should practice Class 10 Magnetic Effects of Electric Current MCQ on a regular basis to ensure that you receive high exam scores.

We have created class 10 Magnetic Effects of Electric Current multiple-choice questions (MCQs) to assist you in your preparation since success in science requires consistent practice.

Class 10 Science Magnetic Effects of Electric Current MCQs Online Test

Class 10 Science Magnetic Effects of Electric Current Online MCQs Mock Test

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Q1. Which of the following correctly describes the magnetic field near a long straight wire?

The field consists of concentric circles centred on the wire

The field consists of radial lines originating from the wire

The field consists of straight lines parallel to the wire

The field consists of straight lines perpendicular to the wire

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Q2. The phenomenon of electromagnetic induction is

producing induced current in a coil due to relative motion between a magnet and the coil

the process of charging a body

the process of rotating a coil of an electric motor

the process of generating magnetic field due to a current passing through a coil

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Q3. The device used for producing electric current is called a

galvanometer

generator

ammeter

motor

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Q4. At the time of short circuit, the current in the circuit.

increases heavily

reduces substantially

vary continuously

does not change

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Q5. The rating of a fuse connected in the lighting circuit is __________.
(a) 5 A
(b) 15 A (c) 0 A (d) 10 A

0 A

15 A

5 A

10 A

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Q6. The core of electromagnet is:

Steel

Nickel

copper

Soft iron

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Q7. The magnetic field is the strongest at

both poles

middle of the magnet

north pole

south pole

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Q8. A soft iron bar is introduced inside a current carrying solenoid. The magnetic field inside the solenoid

will increase

will remain unaffected

will become zero

will decrease

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Q9. Switches are connected to

live wire

neutral wire

anyone

earth wire

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Q10. The most important safety method used for protecting home appliances from short-
circuiting or Overloading is

use of stabilizers

use of electric meter

earthing

use of fuse

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Q11. Choose the incorrect statement from the following regarding
magnetic lines of field

If magnetic field lines are parallel and equidistant, they represent zero field strength

Magnetic field lines are closed curves

The direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points

Relative strength of magnetic field is shown by the degree of closeness of the field lines

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Q12. If the key in the arrangement (Figure) is taken out (the circuit is made open) and magnetic field
lines are drawn over the horizontal plane ABCD, the lines are

straight lines parallel to each other

concentric circles near the point O but of elliptical shapes as we go away from it

elliptical in shape

concentric circles

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Q13. For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect
statement is

The N- and S-poles exchange position when the direction of current through the solenoid is reversed

The pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet

The field lines inside the solenoid are in the form of straight lines which indicates that the magnetic field is the same at all points inside the solenoid

The strong magnetic field produced inside the solenoid can be used to magnetise a piece of magnetic material like soft iron, when placed inside the coil

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Q14. A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in Figure 13.5. The direction
of magnetic field at a point will be North to South

directly above the wire

at a point located in the plane of the paper, on the south side of the wire

at a point located in the plane of the paper, on the north side of the wire

directly below the wire

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Q15. The magnetic field inside a long straight solenoid-carrying current

increases as we move towards its end

decreases as we move towards its end

is the same at all points

is zero

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Q16. An electron enters a magnetic field at right angles to it, as shown in Fig. The direction of force acting on the electron will be

out of the page

into the page

to the right

to the left

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Q17. A positively-charged particle (alpha-particle) projected towards west is
deflected towards north by a magnetic field. The direction of magnetic field is

towards south

towards east

downward

upward

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Q18. Commercial electric motors do not use

an electromagnet to rotate the armature

effectively large number of turns of conducting wire in the current carrying coil

a soft iron core on which the coil is wound

a permanent magnet to rotate the armature

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Q19. In the arrangement shown in Figure there are two coils wound on a non-conducting cylindrical rod.
Initially the key is not inserted. Then the key is inserted and later removed. Then

there are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions

the deflection in the galvanometer remains zero throughout

there are momentary galvanometer deflections that die out shortly; the deflections are in the same direction

there is a momentary deflection in the galvanometer but it dies out shortly and there is no effect when the key is removed

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Q20. Choose the incorrect statement

The right-hand thumb rule is used to find the direction of magnetic fields due to current carrying conductors

The difference between the direct and alternating currents is that the direct current always flows in one direction, whereas the alternating current reverses its direction periodically

In India, the AC changes direction after every 1/50 second

Fleming’s right-hand rule is a simple rule to know the direction of induced current

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Class 10 Science Magnetic Effects of Electric Current MCQs Online Test

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