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Answer any three of the following: (i) Name a suitable electronic component that will emit light - Leaving Cert Engineering - Question c - 2022
Question c
Answer any three of the following: (i) Name a suitable electronic component that will emit light. (ii) Name a suitable electronic component used to adjust the spee... show full transcript
Worked Solution & Example Answer:Answer any three of the following: (i) Name a suitable electronic component that will emit light - Leaving Cert Engineering - Question c - 2022
Step 1
Step 2
Name a suitable electronic component used to adjust the speed of a 9V DC motor.
Answer
A variable resistor, also known as a rheostat or potentiometer, can be used to adjust the speed of a 9V DC motor. By changing the resistance in the circuit, it effectively regulates the voltage and current supplied to the motor, controlling its speed.
Step 3
Name a suitable electronic component used to start and stop the flow of current in a circuit.
Answer
A switch is an electronic component that is used to start and stop the flow of current in a circuit. When the switch is closed, it completes the circuit allowing current to flow, and when it is open, it interrupts the current.
Step 4
Name a suitable electronic component used to provide electrical energy to a circuit.
Answer
A battery or a photovoltaic (PV) solar panel is a suitable electronic component that provides electrical energy to a circuit. A battery stores chemical energy and converts it into electrical energy, while a PV solar panel converts sunlight into electrical energy.