प्रतिरोध और प्रतिघात वाले एक एसी (AC) परिपथ में धारा के प्रवाह में उत्पन्न होने वाले कुल विरोध को क्या कहा जाता है?

An alternating voltage source of variable angular frequency ω and fixed amplitude V is connected in series with a capacitance C and an electric bulb of resistance R (zero inductance). When ω is increased, what happens to the brightness of the bulb?

An inductor of reactance 1 Ω and a resistor of 2 Ω are connected in series to the terminals of a 6 V (rms) AC source. The power dissipated in the circuit is: