The average real power in watts delivered to a load impedance ZL = (4 - J2) Ω by an ideal current source i(t) = 4 sin(wt + 20°) A is
- A. 78 Watts
- B. 32 Watts
- C. Zero Watts
- D. 64 Watts
Answer: B. 32 Watts
Explanation: The current source i(t) = 4 sin(ωt + 20°) has Irms = 4/√2 A. Real power is absorbed only by the resistance R = 4 Ω: P = Irms²·R = (16/2) × 4 = 32 W.