A) 5.6 ´ 10?5 W
B) 2 ´ 10?5 W
C) 4 ´ 10?5 W
D) None of these
Correct Answer: A
Solution :
By using \[R=\rho .\frac{l}{A};\] here \[A=\pi (r_{2}^{2}-r_{1}^{2})\] Outer radius r2 = 5cm Inner radius r1 = 5 ? 0.5 = 4.5 cmYou need to login to perform this action.
You will be redirected in
3 sec