जब शुद्ध प्रतिरोधक पर प्रत्यावर्ती वोल्टेज v = Vm sin(ωt) लागू किया जाता है, तो परिपथ में धारा का मान क्या होता 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: