# Ampere’s law MCQs with Answers

## Ampere’s law MCQs

Ampere’s circuital law:-

Applications of Ampere’s law:

1. Magnetic induction at a point due to straight conductor carrying current can be finding using the formula,

1. Magnetic induction along axis of long straight current carrying solenoid can be finding using formula,

B =μ0 nI

Where n=N/L= number of turns per unit length

3. Magnetic induction along axis carrying toroid can be finding using formula,

B =μ0 nI

Where n=N/2πr= number of turns per unit length

Q.1) Ampere’s law is the modification of……

a) Kirchhoff’s law

b) Laplace’s law

c) Biot-Savert’s law

Q.2) Ampere’s circuital law can be used for finding….

a) magnetic field induction due straight conductor.

b)electric field induction due to point charge

c) magnetic field along axis of bar magnet

d) all of these.

Q.3) According to Ampere’s law the angle between length element of magnetic field and the direction of magnetic field is always….

a) 1800

b) 3600

c) 900

d) 00

Q.4) The magnitude of magnetic induction due to straight conductor carrying current of 10 A at distance of 25 cm is…….

Q.5) Solenoid of length 15 cm has 15000 turns carries current of 2 A, the magnitude of magnetic induction along its axis is….

Q.6) Solenoid of length 15 cm has 15000 turns carries current of 2 A, the magnitude of magnetic induction at its end is….

Q.7)The imaginary loop selected while applying Ampere’s law to find magnetic induction in that loop is termed as….

a) Close loop

b) Loop element

c) Amperian loop

d) Amperian line

Q.8) Toroidal coil of average radius 25 cm and 1000 turns carries current of 5 A, the magnitude of magnetic induction at centre of toroid is….

Q.1) c) Biot-Savert’s law

Q.2) a) magnetic field induction due straight conductor.

Q.3) d) 00

Updated: June 24, 2021 — 9:25 pm