A) 50V
B) 100V
C) 200V
D) 400V
Correct Answer: C
Solution :
[c] \[8\times \frac{4}{3}\pi {{r}^{3}}=\frac{4}{3}\pi {{R}^{3}},R=2r\] \[Q=8q\] \[v=\frac{kq}{r}\] \[{{V}_{1}}=\frac{kQ}{R}=\frac{k(8q)}{2r}=4V(v=50\,volt)\] \[{{V}_{1}}=4\times 50=200V\]You need to login to perform this action.
You will be redirected in
3 sec