Physics

When germanium is doped with phosphorus what type of semiconductor is produced?

When germanium is doped with phosphorus what type of semiconductor is produced? Options (a) N-type (b) P-type (c) Both (a)…

The term liquid crystal refers to a state that is intermediate between

The term liquid crystal refers to a state that is intermediate between Options (a) Crystalline solid and amorphous liquid (b)…

In a transistor the collector current is always less than the emitter current

In a transistor the collector current is always less than the emitter current because Options (a) Collector side is reverse…

Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å.

Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å. The value of lattice constant for this…

The minimum number of NAND gates used to construct an OR gate is

The minimum number of NAND gates used to construct an OR gate is Options (a) 4 (b) 6 (c) 5…

For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)

For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector) the required CB, EB junction bias…

If α (current gain) of transistor is 0.98, then what is the value of β

If α (current gain) of transistor is 0.98, then what is the value of β (current gain) of the transistor?…

In an NPN transistor the collector current is 24 mA. If 80% of the electrons

In an NPN transistor the collector current is 24 mA. If 80% of the electrons reach collector, its base current…

In common base circuit of a transistor, current amplification factor is 0.95.

In common base circuit of a transistor, current amplification factor is 0.95. Calculate the emitter current, if base current is…

Zenor diode is used for

Zenor diode is used for Options (a) amplification (b) rectification (c) voltage regulation (d) produce oscillation in an oscillator Correct…