Home
Class 12
PHYSICS
When current I flows through a wire, the...

When current I flows through a wire, the drift velocity of the electrons is v. When current 2I flows through another wire of the same material having double the length and area of cross-section, the drift velocity of the electrons will be

A

2 v

B

`v/2`

C

`v`

D

`v/4`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

When current flows through choke coil, the dissipation of power is:

Define drift velocity and write its relationship with the current flowing through it.

The drift velocity of electrons in a wire of radius r is proportional to

If the potential difference V applied across a conductor increases to 2V, drift velocity of the electron be

A current of 2A flows through a 12 V bulb then find resistance.

A wire is stretched by 0.01 m when it is stretched by certain force. Another wire of the same material but double the length and double the diameter is stretched by the same force. What is the elongation in metres ?

When the current is doubled , the area of cross section is ____________.

A circular loop has radius R and a current I flows through it. Another circular loop has radius 2R and a current 2I flows through it. Ratio of the magnetic fields at their centres is