Home
Class 12
PHYSICS
When current is passed through the condu...

When current is passed through the conductor, the compass needle deflects. Why?

A

(a)the free electrons do not move

B

(b)the average speed of a free electron over a large period of time is zero

C

(c )the average velocity of a free electron over a large period of time is zero

D

(d)The average of the velocities of all the free electrons at an instant is zero.

Text Solution

Verified by Experts

The correct Answer is:
C, D
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Exercises|84 Videos
  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Objective 1|16 Videos
  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Exercises|11 Videos
  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA|Exercise Exercise|23 Videos

Similar Questions

Explore conceptually related problems

The current flowing through the conductor is ___________.

When carbon dioxide is passed through lime water

When large current passes through the circuit, the fuse wire melts due to ___________.

When electric current is passed through the electrolytic solution, pure copper gets deposited at the _________.

Write a note on : Compass needle.

When electric current is passed through a bulb , the bulb gives light because of …………….

A galvanometer coil has a resistance of 100 Omega . When a current passes through the galvanometer, 1% of the current goes through the coil and the rest through the shunt. Find the resistance of the shunt.

A tangent galvanometer shown a deflection of 45^@ when 10 mA of current is passed through it. If the horizontal component of the earth's magnetic field is B_H = 3.6 xx 10^(-5) T and radius of the coil is 10cm , find the number of turns in the coil.