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

NCERTCOURSE.COM- Find here the NCERT/CBSE chapter-wise Multiple Choice Questions from Class 10 Science book Chapter 13 Magnetic Effects of Electric Current with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Magnetic Effects of Electric Current. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

## Q1. magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act

(i) vertically upwards.
(ii) towards east.
(iii) vertically downwards.
(iv) towards north.

(iii) vertically downwards.

## Q2. The most important safety method used for protecting home appliances from short circuiting or overloading is by

(i) earthing
(ii) use of fuse
(iii) use of stabilizers
(iv) use of electric meter.

(ii) use of fuse

## Q3. If the current values periodically from zero to a maximum value, back to zero and then reverses its direction, the current is

(i) direct
(ii) alternative
(iii) pulsating
(iv) none of the above

(ii) alternative

(i) mass
(ii) speed
(iii) velocity
(iv) momentum

(iii) velocity

## Q5. An electric generator actually acts as

(i) a source of electric charge.
(ii) a source of neat energy.
(iii) an electromagnet.
(iv) a converter of energy.

(iv) a converter of energy.

(i) blue
(ii) red
(iii) green
(iv) white.

(iii) green

## Q7. The most important safety method used for protecting home appliances from short circuiting or overloading is

(i) earthing
(ii) use of fuse
(iii) use of stabilizers
(iv) use of electric meter

(ii) use of fuse

## Q8. The pattern of the magnetic field produced by the straight current carrying conducting wire is

(i) in the direction opposite to the current
(ii) in the direction parallel to the wire
(iii) circular around the wire
(iv) in the same direction of current

(i) in the direction opposite to the current

## Q9. Magnetic lines of force inside current carrying solenoid are

(i) perpendicular to axis.
(ii) along the axis and are parallel to each other.
(iii) parallel inside the solenoid and circular at the ends.
(iv) circular.

(iii) parallel inside the solenoid and circular at the ends.

## Q10. Electric motor is a device which converts

(i) mechanical energy to electrical energy
(ii) electrical energy to mechanical energy
(iii) chemical energy to mechanical energy
(iv) mechanical energy to light energy.

(ii) electrical energy to mechanical energy

## Q11. The device used for producing electric current is called

(i) generator
(ii) galvanometer
(iii) ammeter
(iv) motor

(i) generator

## Q12. The nature of magnetic field line passing through the centre of current carrying circular loop is

(i) circular
(ii) ellipse
(iii) parabolic
(iv) straight line

(iv) straight line

(i) aluminium
(ii) soft iron
(iii) copper
(iv) steel

(ii) soft iron

## Q14. Select the incorrect statement

(а) Magnetic field lines are closed curves
(ii) No two field lines can cross each other
(iii) Field lines can cross each other
(iv) The relative strength of the magnetic field is shown by degree of closness of the field lines.

(iii) Field lines can cross each other

## Q15. What should be the core of an electromagnet?

(i) soft iron
(ii) hard iron
(iii) rusted iron
(iv) none of above

(i) soft iron

(i) Oersted
(iii) Bohr
(iv) Ampere

(i) Oersted

## Q17. The magnetic field lines always begin from

(i) N-pole and end on S-pole.
(ii) S-pole and end on N-pole.
(iii) start from the middle and end at N-pole.
(iv) start from the middle and end at S-pole.

(i) N-pole and end on S-pole.

(i) west
(ii) north
(iii) south
(iv) east

(i) west

(i) Galvanometer
(ii) Motor
(iii) Generator
(iv)Ammeter

(iii) Generator

(i) aluminium
(ii) soft iron
(iii) copper
(iv) alnico

(iv) alnico

## Q21. 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

(i) Upward
(ii) downward
(iii) towards south
(iv) towards east.

(iv) towards east.

## Q22. Small current in a circuit is detected by

(i) Galvanometer
(ii) Solenoid
(iii) Voltmeter
(iv) Fleming’s left hand rule

(i) Galvanometer

(i) carbon brush
(ii) commutator
(iii) slip ring
(iv) armature

(ii) commutator

(i) 200 volt
(ii) 150 volt
(iii) 210 volt
(iv) 220 volt

(iv) 220 volt

## Q25. When current is parallel to magnetic field, then force experience by the current carrying conductor placed in uniform magnetic field is

(i) Twice to that when angle is 60°
(ii) Thrice to that when angle is 60°
(iii) zero
(iv) infinite

(i) Twice to that when angle is 60°

## Q26. Electric motor converts

(i) Mechanical energy into electrical energy
(ii) Mechanical energy into heat energy
(iii) Electrical energy into heat energy
(iv) Electrical energy into mechanical energy

(iv) Electrical energy into mechanical energy

## Q27. A soft iron bar is introduced inside the current carrying solenoid. The magnetic field inside the solenoid

(i) will decrease
(ii) will remains same
(iii) will increase
(iv) will become zero

(iii) will increase

## Q28. Fleming’s left hand and Right hand rules are used in

(i) Generator and electric motor
(ii) Electric motor and generator
(iii) any rule can be used for any device
(iv) both are not applied for generator and motor.

(ii) Electric motor and generator

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## MCQ Questions for Class 10 Science Physics with Answers

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