Question

An electron revolves $6\times {10}^{15}times/sec$ in a circular loop. current in the loop is

• A. 0.96mA
• B. 0.96A
• C. 28.8A
• D. None

Answer 1

The correct option is A 0.96mA

Frequency of revolution $\nu =6\times {10}^{15}$ $s^{-1}$

Charge of electron $q=1.6\times {10}^{-19}$ C

Current in the loop $I=q\nu =1.6\times {10}^{-19}\times 6\times {10}^{15}=0.96$ mA