### What is rms voltage of source in a single loop series

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1) If A = 6 + j8 and B = 2-160° what is A x B in polar and rectangular form?

2) If A = 4 - j4 and B = 6120° what is A - B in polar and rectangular form?

3) What is the RMS voltage of the source in a single loop series circuit if Irms = 1A-30° and Ztotal = 100 65°?

4) What is the power dissipated by an electric heater with a resistance of 20? drawing a current waveform of i(t) = 10 sin(60t) Amps?

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