In an `AC` circuit with voltage `V` and current `I`, the power dissipated is

A 60 Hz AC voltage of 160 V impressed across an LR-circuit results in a current of 2A. If the power dissipation is 200 W, calculate the maximum value of the back emf (in volt) arising in the inductance.

What is the power dissipation in an AC circuit in which voltage and current are given by V = 300 sin (omegat +(pi)/(2)) and I = 5 sin omegat ?

In an a.c circuit, value of voltage and current change every instant. Therefore, power of an a.c. circuit at any instant is the product of instantaneous voltages (E) and instantaneous current (I) . The average power supplied to a pure resistance R over a complete cycle of a.c is P = E_(upsilon). I_(upsilon) . When circuit is inductive, average power/cycle = E_(upsilon) I_(upsilon) cos phi , where phi is the phase angle between alternating voltage an altenating current in the circuit. In an a.c. circuit, 800 mH inductor and a 60 mu F capacitor are connected in series with 15 ohm resistance. The a.c. supply to the circuit is 230 V, 50 Hz The total power abosrbed per cycle by all the three circuit elements is

In an a.c circuit, value of voltage and current change every instant. Therefore, power of an a.c. circuit at any instant is the product of instantaneous voltages (E) and instantaneous current (I) . The average power supplied to a pure resistance R over a complete cycle of a.c is P = E_(upsilon). I_(upsilon) . When circuit is inductive, average power/cycle = E_(upsilon) I_(upsilon) cos phi , where phi is the phase angle between alternating voltage an altenating current in the circuit. In an a.c. circuit, 800 mH inductor and a 60 mu F capacitor are connected in series with 15 ohm resistance. The a.c. supply to the circuit is 230 V, 50 Hz The average power transferred per cycle ot capacitor is

In an a.c circuit, value of voltage and current change every instant. Therefore, power of an a.c. circuit at any instant is the product of instantaneous voltages (E) and instantaneous current (I) . The average power supplied to a pure resistance R over a complete cycle of a.c is P = E_(upsilon). I_(upsilon) . When circuit is inductive, average power//cycle = E_(upsilon) I_(upsilon) cos phi , where phi is the phase angle between alternating voltage an altenating current in the circuit. In an a.c. circuit, 800 mH inductor and a 60 mu F capacitor are connected in series with 15 ohm resistance. The a.c. supply to the circuit is 230 V, 50 Hz This average power transferred per cycle to resistance is

In an a.c circuit, value of voltage and current change every instant. Therefore, power of an a.c. circuit at any instant is the product of instantaneous voltages (E) and instantaneous current (I) . The average power supplied to a pure resistance R over a complete cycle of a.c is P = E_(upsilon). I_(upsilon) . When circuit is inductive, average power/cycle = E_(upsilon) I_(upsilon) cos phi , where phi is the phase angle between alternating voltage an altenating current in the circuit. In an a.c. circuit, 800 mH inductor and a 60 mu F capacitor are connected in series with 15 ohm resistance. The a.c. supply to the circuit is 230 V, 50 Hz The average power transferred per cycle t inductors is

In an a.c circuit, value of voltage and current change every instant. Therefore, power of an a.c. circuit at any instant is the product of instantaneous voltages (E) and instantaneous current (I) . The average power supplied to a pure resistance R over a complete cycle of a.c is P = E_(upsilon). I_(upsilon) . When circuit is inductive, average power/cycle = E_(upsilon) I_(upsilon) cos phi , where phi is the phase angle between alternating voltage an altenating current in the circuit. In an a.c. circuit, 800 mH inductor and a 60 mu F capacitor are connected in series with 15 ohm resistance. The a.c. supply to the circuit is 230 V, 50 Hz The electrial energy spent in running the circuit for one hour is