Question 4
- State three examples each of the active and passive electronic
- Draw the circuit symbol for the following: (i)toggle switch; (ii)bipolar junction transistor.
Define:
(i) an active electronic component;
(ii) a passive electronic component.
components.
Observation
The expected answers were:
- (i) - An active component is one that introduces an internal controlled source in a circuit
(ii) -A passive component is one that does not introduce an internal controlled source in a
circuit.
(b) Examples of active electronic components
- Transistors
- Diodes
- Integrated circuit
- Vacuum tubes {triode, tetrode, pentode}
Examples of passive electronic components
- Switches
- Resistors
- Inductors
- Capacitors
- Potentiometer
- Diodes { vacuum/crystal}
(c) (i) Toggle switch
(ii) Bipolar junction transistor
Either PNP or NPN symbol