1. A 20-V 60Hz sinusoidal generator is connected to an 18ohms resistor. Determine the instantaneous current when elapsed time is 0.0001 second.
2. An industrial coil has a resistance of 10 ohms and a reactance of 18 ohms and rated 600 volts at 50 Hz. a factory will connect the coil to a 600 volts, 30 Hz supply. Solve for the value of a series resistor needed to avoid overcurrent condition.
3. A 25-ohm resistor is connected in series with a coil of 50ohm resistance and 150(uf) capacitance. What is the power factor of the circuit?
4. A series resistance-inductance (R-L) circuit is connected to a 220 volt 50 cycle source. If the power taken by the circuit is 4800 watts and the voltage drop across the resistor is 110 volts, calculate the inductance of the inductor.
2. An industrial coil has a resistance of 10 ohms and a reactance of 18 ohms and rated 600 volts at 50 Hz. a factory will connect the coil to a 600 volts, 30 Hz supply. Solve for the value of a series resistor needed to avoid overcurrent condition.
3. A 25-ohm resistor is connected in series with a coil of 50ohm resistance and 150(uf) capacitance. What is the power factor of the circuit?
4. A series resistance-inductance (R-L) circuit is connected to a 220 volt 50 cycle source. If the power taken by the circuit is 4800 watts and the voltage drop across the resistor is 110 volts, calculate the inductance of the inductor.
