A) \[5\sqrt{2}\,A\]
B) \[5\sqrt{\frac{3}{2}}\,A\]
C) \[\frac{5}{6}A\]
D) \[\frac{5}{\sqrt{2}}A\]
Correct Answer: A
Solution :
(b) \[5\sqrt{\frac{3}{2}}\,A\] Here, \[{{l}_{rms}}=5A,\,v=50\,Hz,\,\,t=\frac{1}{300}s\] \[{{l}_{0}}=\sqrt{2}\,\,{{l}_{rms}}=5\sqrt{2}\,\,A,\] \[l={{l}_{0}}\sin \omega t={{l}_{0}}\sin \,\,2\pi vt\] \[=5\sqrt{2}\sin \left( 2\pi \times 50\times \frac{1}{300} \right)\] \[=5\sqrt{2}\sin \frac{\pi }{3}=5\sqrt{2}\frac{\sqrt{3}}{2}=5\sqrt{\frac{3}{2}}A\]
You need to login to perform this action.
You will be redirected in
3 sec
