Semiconductor E...

Two conducting wires of same material and of equal lengths, resistance and resistivity having ratio $$1:2$$. Their diameter ratio will be 

In a semiconductor

With  rise in temperature the electrical conductivity of intrinsic semiconductor:

Wire $$P$$ and $$Q$$ have the same resistance at a ordinary room  temperature .When heated resistance  at a ordinary room temperature .When heated resistance of $$P$$ increases and that of $$Q$$ decreases. we conclude that

The width of deplection layer in P-N junction diode is :

Symbolic representation of photodiode is

In the forward bias characteristic curve, a diode appears as :

A two-input NAND gate is followed by a single-input NOR gate. This logic circuit will function as : 

In a $$\mathrm { n }$$ -p-n transistor circuit, the collector current is $$10 \mathrm { mA }$$ . If $$95$$ percent of the electrons emitted reach the collector, which of the following statements are true?