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Applied Electricity

Applied Electricity · Quick practice · answer shown after each question

Electronics

Question 1 of 10

Question 1 of 10

An LED emits light when it is

Question 2 of 10

Question 2 of 10

A light-dependent resistor has

Question 3 of 10

Question 3 of 10

A circuit that converts AC to DC is a

Question 4 of 10

Question 4 of 10

The three terminals of a bipolar transistor are

Question 5 of 10

Question 5 of 10

A Zener diode is used mainly for

Question 6 of 10

Question 6 of 10

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

Question 7 of 10

Question 7 of 10

A transistor has three terminals: emitter, base and

Question 8 of 10

Question 8 of 10

The voltage gain of an amplifier with output 2 V for input 20 mV is

Question 9 of 10

Question 9 of 10

Adding impurities to pure silicon to change its conductivity is called

Question 10 of 10

Question 10 of 10

A common-emitter amplifier produces an output that is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.