In a transistor, the base current is $10 \mu \mathrm{~A}$ and the emitter current is 1 mA , then the collector current is

If the output of a NAND gate is given as input to a NOT gate, the resultant gate is

The band gap in a semiconductor is 0.6 eV . The maximum wavelength of electromagnetic radiation which can create a hole electron pair in the semiconductor is equal to

[use $h c=1242 \mathrm{eV}-\mathrm{nm}$ ]

Identify the logic gate from the following with the same truth table characteristics of the logic circuit below