Question

A small metallic ball is charged positively and negatively in a sinusoidal manner at a frequency 10^6 cps. The maximum charge on the ball is 10^-6 C. What is displacement current due to this alternating current ?
a. 6.28 amp
b. 3.4amp
c. 3.75 x 10^-4 amp
d . 12.56amp
Plz solve it with explanation..
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Answer 1

Answer:

hiii there hope it helps you

Explanation:

here,v=10^6cps,q=10^-6c i=?   therefore,i=dq/dt=d/dt[qsinomegat]=qwtcoswt       and i to be maximum coswt=1 so maximum value i=qw=q[2piv]=10^6*2*3.14*10^-6=6.28A