Consider an electric saw motor where the current lags the voltage by 25°. The motor operates with an rms current of 4.0 A supplied by a power line with an rms voltage of 140 V. What is the power of the motor?

When connected to a 110V/50Hz power supply, an RLC circuit in series configuration that contains a 100 Ω resistor dissipates power of 80W. Determine the value of the power factor.

An electric water resistor heater is connected across a 240.0 V rms potential difference. The water heater consumes, on average, 1500.0 W. Calculate the maximum instantaneous power dissipated in the resistor.

A series RLC circuit is driven by an AC power source of rms 60 V at a frequency of 120 Hz. The resistor has a resistance of 150 Ω, the inductor has an inductance of 125 mH,  and the capacitor has a capacitance of 112 mF. Calculate i) the power provided by the AC source and ii) the rate at which electrical energy is lost in the resistor.

An electrical circuit consists of a resistor R= 300 Ω, an inductor L=0.200 H, and a capacitor C= 6.35 μF, connected in series with an AC generator. When the frequency of the generator is set at 250.0 Hz the rms current flowing in the circuit is 0.55 A. Determine i) the circuit phase angle (Φ)  and ii) the power factor.

A series RLC circuit is driven by an ac generator with a peak voltage of 30.0 V and an angular frequency of 314 rad/s. The resistance is 120.0 Ω, the capacitance is 3.60 μF, and the inductance is 650.0 mH. Determine cos Φ for this circuit.