- #1

TheBigDig

- 65

- 2

**1.**For the circuit shown in (Figure 1) , where V= 2.8 cos(2 t+ 0.3 ) , R= 8 Ω and C= 4×10−2 F , find the average power supplied by the source, P

_{s}and the average power absorbed by the resistor P

_{R}.

**2.**p (t) = v(t)i(t) = V

_{m}I

_{m}cos (ωt + θ

_{v}) cos (ωt + θ

_{i})

P

_{R}= (1/2)(V

^{2}

_{m}/R)

**3.**From the expression given, I've managed to isolate the value of omega and V

_{m}. But I'm confused as to how to find the power if we're not given an expression for the current.