When a wire carries a current of 1.20 A,...

When a wire carries a current of `1.20 A`, the drift velocity is `1.20xx10^-4 m//s`. What is the drift velocity when the current is `6.00 A`?

Text Solution

Verified by Experts

`i="ne"Av_d`ltbr. `i.e. v_d propi`
when current has increased from `9=1.2A` to `i=6.0A`, i.e five times, then drift velocity will increase to five times.

Topper's Solved these Questions

CURRENT ELECTRICITY
DC PANDEY|Exercise Exercise 23.4|4 Videos
CURRENT ELECTRICITY
DC PANDEY|Exercise Exercise 23.5|2 Videos
CURRENT ELECTRICITY
DC PANDEY|Exercise Exercise 23.2|1 Videos
COMMUNICATION SYSTEM
DC PANDEY|Exercise Subjective|11 Videos
ELECTROMAGNETIC INDUCTION
DC PANDEY|Exercise Medical entrances gallery|25 Videos

When current is 4 A in a conductor the drift velocity is v_(d) When the current is 3 A the drift velocity will be

`(3)/(4)v_(d)`

`v_(d)`

`(4)/(3)v_(d)`

None of these

A long straight wire carries a current of 10 A. An electron travels perpendicular to the plane of this wire at a distance 0.1 m with a velocity of 5.0 xx10^(6)m//s. What is the force acting on the electron due to the current in wire ?

` 2.2 xx10^(-17)N`

`1.6xx10^(-17) N `

`0.6xx10^(-17)N`

Zero

A copper wire has a square cross-section, 2.0 mm on a side. It carries a current of 8 A and the density of free electrons is 8 xx 10^(28)m^(-3) . The drift speed of electrons is equal to

`0.156 xx 10^(-3) ms`

`0.156 xx 10^(-2)ms`

`3.12 xx 10^(-3)ms`

`3.12 xx 10^(-2)ms`