Electric Mobility

Thanks for visiting Electric Scooters!
We hope you find the Electric Mobility information that you are looking for.
Check eBay for Electric Mobility products. eBay can be a great resource for finding most anything you desire!

Electric field inside a Nichrome wire?

A Nichrome wire 88 cm long and 0.25 mm in diameter is connected to a 1.3 volt flashlight battery. What is the electric field inside the wire?

The answer is in v/m, but the volume is m^3, so you can't just divide by the voles by the volume. Do I use the radius or the length? I think length because radius is m^2, but can anyone verify for me?

The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobility 4 times as large as that of Nichrome. Now what is the electric field inside the wire?

i = naME
i = current
n = electron densirt
a = area
M = electron mobility
E = electric field

thankz
[Fish]: first one is right and second one is wrong. Thanks anyways.

I would assume that you would use the length, since its units are in meters.

E = V/m = 1.3/0.88 = 1.48 V/m

[Edit]: I thought it would be. I did some research and found that the electric field is independent of the mobile electron mobility. So even if the M is 4x greater, the E would still be equal to 1.48 V/m. However, the electron current would increase to compensate for the greater electron mobility.

Thanks for visiting!