The peak voltageof an a.c. supply is 300V. What is the rms voltage?

In a purely inductive ac circuit L = 25 mH and peak voltage of ac supply is150 V. Find inductive reactance and maximum current if the frequency is 50 Hz.

The instantaneous voltage from an a.c. source is given by E = 300 sin 314 t. What is the r.m.s. voltage of the source ?

An ideal transformer has 100 turns in the primary and 250 turns in the secondary .The peak value of the ac is 28 V.The r.m.s .secondary voltage is nearest to

The rms value of current in an a.c. circuit is 10 A.What is the peak current?

A coil of inductance 0.50 H and resistance 100 Omega is connected to a 240 V.50 Hz ac supply . What is the time lag between the voltage maximum and the current maximum ?

The peak value of an alternating voltage is 350 V. Calculate its r.m.s. value.

What is peak value of AC.

The peak value of alternating voltage is 423 V. Its root mean square value is

Choose correct alternative. Five dry cells each of voltage 1.5 V are connected as shown in diagram. What is the overall voltage with this arrangement? A. 0V B. 4.5V C. 6.0V D. 7.5V