If the feedback voltage is increased in a negative feedback amplifier, then
If the feedback voltage is increased in a negative feedback amplifier, then Options (a) both gain and distortion decrease (b)…
7 years ago
Electronic Devices
In p- type semiconductor, the acceptor level lies
In p- type semiconductor, the acceptor level lies Options (a) near the conduction band (b) halfway between conduction and valence…
7 years ago
Which one of the following statements is not correct in case of a semiconductor?
Which one of the following statements is not correct in case of a semiconductor? Options (a) Temperature coefficient of resistance…
7 years ago
In a ionised gas,the mobile charge carriers are
In a ionised gas,the mobile charge carriers are Options (a) electrons (b) both positive ad negative ions (c) electrons and…
7 years ago
In a vaccum triode the function of grid voltage is
In a vaccum triode the function of grid voltage is Options (a) To maintain electron flow (b) To increase the…
7 years ago
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)…
7 years ago
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)…
7 years ago
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…
7 years ago
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…
7 years ago
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…
7 years ago