A) \[\text{11}\times \text{l}{{0}^{\text{3}}}\text{ cal}\]
B) \[\text{22}\times \text{1}{{0}^{\text{3}}}\text{ cal}\]
C) \[33\times \text{1}{{0}^{\text{3}}}\text{ cal}\]
D) \[25\times \text{1}{{0}^{\text{3}}}\text{ cal}\]
Correct Answer: A
Solution :
\[H=\frac{l_{v}^{2}Rt}{j}cal\] \[=\frac{{{(\sqrt{2})}^{2}}\times 110\times 7\times 60}{4.2}\] \[\left( \because {{I}_{rms}}=\frac{{{I}_{0}}}{\sqrt{2}}=\frac{220/110}{\sqrt{2}}=\sqrt{2} \right)\] \[=22\times {{10}^{3}}cal\]
You need to login to perform this action.
You will be redirected in
3 sec
