10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION. 10.1.2 In which direction will the coil rotate? Write down only CLOCKWISE or ANTICLOCKWISE. 10.1.3 Write down the energy conversion which takes place while the motor is working. 10.2 An AC generator, producing a maximum voltage of 320 V, is connected to a heater of resistance 35 Ω. 10.2.1 Write down the structural difference between an AC generator and a DC generator. Calculate the: 10.2.2 Root mean square (rms) value of the voltage. 10.2.3 Root mean square (rms) value of the current in the heater.

NSC Physical Sciences Electrodynamics: Electrical Machines (Generators and Motors): 10.1 Name the component that ens

10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION - NSC Physical Sciences - Question 10 - 2018 - Paper 1

Question 10

10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION. 10.1.2 In which direction will the coil rotate? Write down only CLOCKWISE o... show full transcript

Worked Solution & Example Answer:10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION - NSC Physical Sciences - Question 10 - 2018 - Paper 1

Step 1

10.1.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION.

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Answer

The component that ensures the coil rotates continuously in one direction is the split ring or commutator.

Step 2

10.1.2 In which direction will the coil rotate? Write down only CLOCKWISE or ANTICLOCKWISE.

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Answer

The coil will rotate ANTICLOCKWISE.

Step 3

10.1.3 Write down the energy conversion which takes place while the motor is working.

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Answer

The energy conversion that occurs is from electrical energy to mechanical (kinetic) energy.

Step 4

10.2.1 Write down the structural difference between an AC generator and a DC generator.

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Answer

The structural difference is that an AC generator uses slip rings, while a DC generator uses a commutator.

Step 5

10.2.2 Root mean square (rms) value of the voltage.

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Answer

The root mean square (rms) value of the voltage is calculated using the formula:

$V_{rms} = \frac{V_{max}}{\sqrt{2}}$

Substituting the values:

$V_{rms} = \frac{320}{\sqrt{2}} \approx 226.27 \ V$

Step 6

10.2.3 Root mean square (rms) value of the current in the heater.

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Answer

To find the rms current, we use Ohm's Law:

$I_{rms} = \frac{V_{rms}}{R}$

Substituting the values:

$I_{rms} = \frac{226.27}{35} \approx 6.46 \ A$

10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION - NSC Physical Sciences - Question 10 - 2018 - Paper 1

Worked Solution & Example Answer:10.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION - NSC Physical Sciences - Question 10 - 2018 - Paper 1

10.1.1 Name the component that ensures that the coil rotates continuously in ONE DIRECTION.

10.1.2 In which direction will the coil rotate? Write down only CLOCKWISE or ANTICLOCKWISE.

10.1.3 Write down the energy conversion which takes place while the motor is working.

10.2.1 Write down the structural difference between an AC generator and a DC generator.

10.2.2 Root mean square (rms) value of the voltage.

10.2.3 Root mean square (rms) value of the current in the heater.

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