A) \[{{10}^{4}}\]watt
B) \[10\] watt
C) \[2.5\]watt
D) \[5.0\]watt
Correct Answer: C
Solution :
[c] \[P={{V}_{r.m.s}}\times {{I}_{r.m.s}}\times \cos \phi =\frac{1}{2}{{V}_{0}}\,{{I}_{0}}\,\cos \phi \] \[=\frac{1}{2}\times 100\times (100\times {{10}^{-3}})\cos \pi /3\] \[=2.5W\]You need to login to perform this action.
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