Electronics
GCE Physics
11 Electronics practice questions covering everything you need for GCE.
Drill Electronics →Sample Electronics questions
a) i) What is meant by a semiconductor? ii) Distinguish between intrinsic and extrinsic semiconductors. b) i) With the aid of a labelled diagram, describe the structure of a p-n junction diode. …
a) i) State what is meant by amplification as used in electronics. ii) Define the term voltage gain of an amplifier. b) The diagram below shows a common-emitter transistor amplifier circuit. …
A transistor connected in the common-emitter configuration has a base current of 50 µA and a collector current of 5 mA. What is the current gain (β) of the transistor?
Which of the following logic gates produces an output of 1 only when all its inputs are 0?
In a full-wave rectifier using a centre-tapped transformer, the number of diodes required is
Which of the following is the correct symbol for a p-n junction diode?
An n-p-n transistor is used as a switch in a circuit. The transistor is said to be in saturation when
A Zener diode with a breakdown voltage of 6 V is connected in a voltage regulator circuit. If the supply voltage is 10 V and the series resistor is 200 Ω, what is the current through the series resist…
In an intrinsic semiconductor at absolute zero temperature (0 K), the material behaves as
The truth table below represents which logic gate? Input A | Input B | Output 0 | 0 | 1 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0
In a semiconductor, the majority charge carriers in a p-type material are