The energy, of the bob of a simple pendulum, decreases to 64% of its original value. The amplitude of oscillations must have decreased to

The forward and reverse currents, flowing through a diode, are due respectively to

The knee voltage, for Ge and Si diode, are (respectively)

Zener diode, having a Zener voltage $V_{Z}V\_Z$, is said to be in ‘ OFF ’ state when reverse voltage $V_{R}V\_R$ is such that

A Zener diode is generally used as,

A characteristic feature of IV graph of a Zener diode is

In a CE transistor (in active mode), the emitter-base junction has a resistance (r) while the collector-base junction has a resistance R. We can say that r and R, are, respectively, a

The input characteristics curves of a transistor, are curves between

Two multimeters (A and B) require a total markings of 20 mA and 60 mA, respectively, to give full-scale deflection. It implies that,

The (small) amplitude, of the oscillating bob, of a simple pendulum, becomes 75% of its initial value in a time of T seconds. The percentage loss in energy, of the bob, in this time, is nearly