An electric generator has e.m.f. of 240 V and an internal resistance of 1Ω if the current supplied by the generator is 20A when the terminal voltage is 220 V, find the ratio of the power supplied to the power dissipated?
zener diode is used for?
In alternating current circuit at resonance, the angle of lead or lag is?
Given the inductor of inductance 5mH, 10mH and 20mH connected in series, the effective inductance is
From the diagram above, if the potential difference across the resistor, capacitor and inductor are 80 v, 110 v, 40 v respectively, the effective potential difference is?
