Question

plzz answer this question​

Answer 1

Please refer to the attachment for the solution.......

Hope u get that right

....

Answer 2

Answer:

B = u° I /2R

R = 10^-10m

u ° = 4π × 10^-7

I = 8/π × 10^-3 Amp

I = e/T

T = 2πr/v

v = wR

I = ew/2R

w = 10^17

2nd option

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