Question 5
(a)Table 3 shows electrical quantities and their units of measurement and symbols.
Copy and complete Table 3.
(b) Draw the circuit symbols of the following components:
- (i)variable resistor;
- (ii)electrolytic capacitor;
- (iii)inductor;
- (iv)fuse;
- (v)PN diode;
- (vi) NPN transistor.
Observation
The expected answers were:
- (a) Electrical quantities and their units of measurement and symbols
Electrical quantity |
Unit of measurement |
Symbol |
Resistance |
Ohms |
Ω |
Voltage/Electromotive force/Potential difference |
Volts |
V |
Current |
Ampere |
A |
(b) Circuit symbol of components
