# Magnetic Effects of Electric Current MCQ Questions for Class 10 Science Chapter 13 with Answers

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## Q1.Fleming’s left hand and Right hand rules are used in

(A) Generator and electric motor
(B) Electric motor and generator
(C) any rule can be used for any device
(D) both are not applied for generator and motor.

## Q2. magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act

(A) vertically upwards.
(B) towards east.
(C) vertically downwards.
(D) towards north.

## Q3. A soft iron bar is introduced inside the current carrying solenoid. The magnetic field inside the solenoid

(A) will decrease
(B) will remains same
(C) will increase
(D) will become zero

## Q4. The most important safety method used for protecting home appliances from short circuiting or overloading is by

(A) earthing
(B) use of fuse
(C) use of stabilizers
(D) use of electric meter.

## Q5. Electric motor converts

(A) Mechanical energy into electrical energy
(B) Mechanical energy into heat energy
(C) Electrical energy into heat energy
(D) Electrical energy into mechanical energy

## Q6. If the current values periodically from zero to a maximum value, back to zero and then reverses its direction, the current is

(A) direct
(B) alternative
(C) pulsating
(D) none of the above

## Q7. When current is parallel to magnetic field, then force experience by the current carrying conductor placed in uniform magnetic field is

(A) Twice to that when angle is 60°
(B) Thrice to that when angle is 60°
(C) zero
(D) infinite

(A) mass
(B) speed
(C) velocity
(D) momentum

(A) 200 volt
(B) 150 volt
(C) 210 volt
(D) 220 volt

## Q10. An electric generator actually acts as

(A) a source of electric charge.
(B) a source of neat energy.
(C) an electromagnet.
(D) a converter of energy.

(A) carbon brush
(B) commutator
(C) slip ring
(D) armature

(A) blue
(B) red
(C) green
(D) white.

## Q13. Small current in a circuit is detected by

(A) Galvanometer
(B) Solenoid
(C) Voltmeter
(D) Fleming’s left hand rule

## Q14. The most important safety method used for protecting home appliances from short circuiting or overloading is

(A) earthing
(B) use of fuse
(C) use of stabilizers
(D) use of electric meter

## Q15. A positively charged particle say an alpha particle projected towards west is deflected toward north by a magnetic field. The direction of the magnetic field is

(A) Upward
(B) downward
(C) towards south
(D) towards east.

## Q16. The pattern of the magnetic field produced by the straight current carrying conducting wire is

(A) in the direction opposite to the current
(B) in the direction parallel to the wire
(C) circular around the wire
(D) in the same direction of current

(A) aluminium
(B) soft iron
(C) copper
(D) alnico

## Q18. Magnetic lines of force inside current carrying solenoid are

(A) perpendicular to axis.
(B) along the axis and are parallel to each other.
(C) parallel inside the solenoid and circular at the ends.
(D) circular.

(A) Galvanometer
(B) Motor
(C) Generator
(D) Ammeter

## Q20. Electric motor is a device which converts

(A) mechanical energy to electrical energy
(B) electrical energy to mechanical energy
(C) chemical energy to mechanical energy
(D) mechanical energy to light energy.

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## MCQ Questions for Class 10 Science Physics with Answers

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