The instantaneous value of emf and current in and A. C . circuit are ;
$$ E = 1.414 \sin \left ( 100 \pi t - \dfrac{\pi}{4} \right ) , I = 0.707 \sin ( 100 \pi t ) $$

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The instantaneous value of emf and current in an A.C. circuit are E=1.414sin( 100πt−π4) , I=0.707 sin(100πt) . The resistance of the circuit is2Ω√2Ω1√2Ω12Ω

The instantaneous value of emf and current in an A.C. circuit are $E = 1.414$ sin( $100 π t - \frac{π}{4}$ ) , $I = 0.707$ sin( $100 π t$ ) . The resistance of the circuit is
$2 Ω$
$\sqrt{2} Ω$
$\frac{1}{\sqrt{2}} Ω$
$\frac{1}{2} Ω$