A) \[4:1\]
B) \[1:3\]
C) \[3:1\]
D) \[1:9\]
Correct Answer: B
Solution :
\[H=\frac{I_{x}^{2}RT}{J}cal\] \[=\frac{{{(\sqrt{2})}^{2}}\times 110\times 7\times 60}{4.2}\] \[\left( \because {{I}_{rms}}=\frac{{{I}_{0}}}{\sqrt{2}}=\frac{220/110}{\sqrt{2}}=\sqrt{2} \right)\] \[=2.2\times {{10}^{3}}cal\]You need to login to perform this action.
You will be redirected in
3 sec