In a purely resistive a.c. circuit, the current I = Io sin wt and voltage, V = Vo sin wt. Calculate the instantaneous power dissipated in the circuit in time t.

In a purely resistive a.c. circuit, the current I = I_o sin wt and voltage, V = V_o sin wt. Calculate the instantaneous power dissipated in the circuit in time t.

A I_o V_o
B 2I_o V_osin wt
C (I_o V_o)/2
D I_o V_o sin²wt
E I²_o V²_o

waec 1993 physics

The correct answer is D. I_o V_o sin²wt

No explanation given

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