2_Principles of basic electrical circuits

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3 x 12Ω resistors are connected in parallel to a 200V supply, calculate the total power of the circuit.

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Two resistors of 20 ohms and 40 ohms are connected in series across a 120v d.c. supply, the current flowing in the circuit will be:

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If three resistors are connected in series and have resistances of 20 Ω, 30 Ω, and 40 Ω then the total resistance would be

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3 x 20Ω resistors are connected in series to a 200V supply, calculate the total power of the circuit.

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For the circuit shown the total resistance is

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To measure the current through a load the meter must be connected

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To measure the voltage across a load the meter must be connected

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In the diagram below if I1 and I2 are ammeter readings then

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In the diagram below instrument A measures

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In the diagram below instrument B measures

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Instrument A measures

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Instrument E measures

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For the circuit shown above the total current is

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If four resistors each of 50 Ω are connected in parallel the overall resistance is

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Which of the instrument numbers would measure current

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Which of the instrument numbers would measure voltage

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Meter M1 will measure

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Meter M2 will measure

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Instrument 4 is measuring

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Instrument 2 above is measuring

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Of the following materials which would be the BEST conductor of electricity?

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A poor conductor of electricity is:

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The resistance of an electrical conductor is:

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What is the formula for two resistors in parallel?

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When the current through a conductor increases

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2_Principles of basic electrical circuits

3 x 12Ω resistors are connected in parallel to a 200V supply, calculate the total power of the circuit.

Two resistors of 20 ohms and 40 ohms are connected in series across a 120v d.c. supply, the current flowing in the circuit will be:

If three resistors are connected in series and have resistances of 20 Ω, 30 Ω, and 40 Ω then the total resistance would be

3 x 20Ω resistors are connected in series to a 200V supply, calculate the total power of the circuit.

For the circuit shown the total resistance is

To measure the current through a load the meter must be connected

To measure the voltage across a load the meter must be connected

In the diagram below if I1 and I2 are ammeter readings then

In the diagram below instrument A measures

In the diagram below instrument B measures

Instrument A measures

Instrument E measures

For the circuit shown above the total current is

If four resistors each of 50 Ω are connected in parallel the overall resistance is

Which of the instrument numbers would measure current

Which of the instrument numbers would measure voltage

Meter M1 will measure

Meter M2 will measure

Instrument 4 is measuring

Instrument 2 above is measuring