Questions in semiconductor

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	Choose the correct statement
	In a P-type semi-conductor, germanium is dopped with
	A piece of semiconductor is connected in series in an electric circuit. On increasing the temperature, the current in the circuit will
	Intrinsic semiconductor is electrically neutral. Extrinsic semiconductor having large number of current carriers would be
	If $n_e$ and $v_d$ be the number of electrons and drift velocity in a semiconductor. When the temperature is increased
	In extrinsic semiconductors
	Resistivity of a semiconductor depends on
	Electric current is due to drift of electrons in
	The energy gap of silicon is 1.14 eV. The maximum wavelength at which silicon will begin absorbing energy is
	Which of the following energy band diagram shows the N-type semiconductor