A) \[\frac{{{E}_{0}}{{I}_{0}}}{\sqrt{2}}\]
B) \[\frac{EI}{\sqrt{2}}\]
C) \[\frac{{{E}_{0}}{{I}_{0}}}{2}\]
D) zero
Correct Answer: D
Solution :
The rate of dissipation of energy in an electrical circuit is called power. The power of an alternating current circuit depends upon the phase difference between the voltage and the current \[P={{E}_{rms}}\times {{i}_{rms}}\times \cos \phi \] For the given current and voltage variation, phase difference is\[{{90}^{o}}\]. The average power then is \[P={{E}_{rms}}\times {{i}_{rms}}\times \cos {{90}^{o}}=0\] Hence, there is no energy dissipation in such a circuit.
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