An e.m.f. of peak value 100 V and frequency 60 r.p.s is supplied to the bulb.Write down the equation of supplied voltage.

An a.c. e.m.f. of peak value 240 V and frequency 50 Hz is connected to a circuit with R = 12 Omega , L = 2.5 H and a capacitor all in series. Find the capacitance for the current in the circuit to be maximum. Find the maximum current.

An inductor of inductance 200 mH is connected to an AC source of peak emf 210 V and frequency 50 Hz.Calculate the peak current. What is the instantaneous voltage of the source when the current is at its peak value?

An alternating e.m.f. of peak value 110 V andfrequency 50 Hz is connected across LCR series circuit with R = 100 Omega , L = 10 mH, C = 25 muF . Calculate the inductive reactance, capacitive reactance and impedance.

A sinusoidal voltage of peak value 283V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Omega , L = 25.48 mH and C = 796 muf . Find:-The power dissipated in the surface.

A sinusoidal voltage of peak value 283V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Omega , L = 25.48 mH and C = 796 muf . Find:-The power factor

A sinusoidal voltage of peak value 283V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Omega , L = 25.48 mH and C = 796 muf . Find:-The impedance of the circuit

A sinusoidal voltage of peak value 283V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Omega , L = 25.48 mH and C = 796 muf . Find:-The phase difference between the voltage across source and the currents

The transformer ratio of the step down transformer is 2 : 5 . Alternating voltage of 180 V amplitude is supplied to the primary. Calculate the r.m.s. value of secondary voltage

A series LCR circuit with R=20 Omega ,L=1.5 H and C = 35 mu F is connected to a variable frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit , what is the average pourer transferred to the circuit in one complete cycle?