Electronics

Question 1 of 10

A transistor has β = 100 and base current 20 μA. The collector current is

Question 2 of 10

The three regions of a bipolar transistor are

Question 3 of 10

A Zener diode is used mainly for

Question 4 of 10

A half-wave rectifier fed with 12 V r.m.s. gives a peak output of about

Question 5 of 10

A light-dependent resistor has

Question 6 of 10

A semiconductor device that allows current to flow in one direction only is a

Question 7 of 10

A common-emitter amplifier produces an output that is

Question 8 of 10

A Zener diode is mainly used for

Question 9 of 10

Changing a.c. into d.c. is called

Question 10 of 10

The process of adding impurities to pure silicon is