Assignment:
The instantaneous current and voltage in an electrical circuit are given by:
i = Icos(50pi*t)
v = Vcos(50*pit + pi/6)
Determine an expression for the instantaneous power in the circuit p = iv, "AS THE SUM OF 2 COSINES"
If I is 0.003 Amps and V is 5 volts, calculate the maximum value of p, giving the answer in watts correct to 3 significant figures, and the first positive value of t at which it occurs.