Define a motor - NSC Technical Sciences - Question 10 - 2024 - Paper 1
Question 10
Define a motor.
An electric machine that converts electrical energy into mechanical energy.
Write down the NAME of the component labelled 1.
Armature/Coil.
When ... show full transcript
Worked Solution & Example Answer:Define a motor - NSC Technical Sciences - Question 10 - 2024 - Paper 1
Step 1
10.1 Define a motor.
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Answer
An electric machine that converts electrical energy into mechanical energy.
Step 2
10.2 Write down the NAME of the component labelled 1.
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Answer
Armature/Coil.
Step 3
10.3.1 Give a reason why component 1 begins to rotate.
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Answer
A current carrying component 1 in the presence of the magnetic field experiences a force.
Step 4
10.3.2 In which direction will component 1 rotate? Write ANTICLOCKWISE or CLOCKWISE.
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ANTICLOCKWISE.
Step 5
10.4 Sketch a graph of an AC circuit for ONE complete cycle.
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A graph showing voltage on the Y-axis and time on the X-axis with a sinusoidal wave form, depicting one complete cycle.
Step 6
10.5.1 State Faraday's law of electromagnetic induction in words.
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Answer
When the magnetic flux linked with the coil changes, an emf is induced in the coil.
Step 7
10.5.2 Calculate the magnitude of the induced emf for the coil.
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The induced emf can be calculated using the formula:
