Aluminium is a ........

By increasing the temperature, the conductivity of the semiconductor is:

Conductivity of a semiconductor material increases byI. increasing temperature.II. increasing the surface area.III. decreasing the density of charge carriers.IV. doping with small amounts of impurities.

Dark plastic handlers often used on kitchen utensils because:

Ferromagnetic means:

In biasing of a transistor, which region must be reverse biased?