1. The voltage across a load is v(t) = 260 sin (377t + 10 °) and the current through the load is i = 100 sin (377t + 10°). What is the RMS power?
2. The voltage across a load is v(t) = 260 sin (377t + 10 °). What is the RMS voltage?
3. The voltage across a load is v(t) = 200 sin (377t + 70°) and the current through the load is i(t) = 20 sin (377t + 20°). What is the impedance?
4. The current flowing through a 10 H inductor is i = 20 sin (20t). What is the inductive reactance?