Circuits Revision

Which is the correct definition for current?

• rate of flow of charge

• energy per unit charge

• reduces the flow of electrons

Voltmeters must be placed in...

• parallel to the component being measured (to measure difference in energy)

• series to the component being measured (to measure difference in energy)

• parallel to the component being measured (to measure the number of electrons passing through it)

• series to the component being measured (to measure the number of electrons passing through it)

An ammeter must be placed in...

• series to measure the number of electrons passing through it

• parallel to measure the number of electrons passing through it

• series to measure the amount of energy passing through it

• parallel to measure the number of electrons passing through it

Which of the following is the resistor symbol?

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Which of the following is the circuit symbol for a thermistor?

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Which of the following is the circuit symbol for a diode?

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Which of the following is the circuit symbol for a variable resistor?

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Which of the following is the circuit symbol for a LDR?

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Which of the following is the graph for a filament lamp?

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Which of the following is the graph for a fixed resistor?

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