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Questions and Answers
What is the purpose of a cell (or battery) in an electric circuit?
What is the purpose of a cell (or battery) in an electric circuit?
- To use electro-mechanical energy
- To replenish positive and negative charge
- To measure the force available to push electrons
- To provide potential difference (correct)
What is the function of a generator in maintaining potential difference in an electric circuit?
What is the function of a generator in maintaining potential difference in an electric circuit?
- Supplies chemical energy to the circuit
- Provides a measure of the force available to push electrons
- Uses electro-mechanical energy to maintain potential difference (correct)
- Replenishes positive and negative charge
What is the term for the potential difference across the terminals of the source when it is not supplying current?
What is the term for the potential difference across the terminals of the source when it is not supplying current?
- Static potential force
- Residual potential difference
- Terminal voltage
- Electromotive Force (emf) (correct)
What is the potential difference across the terminals of the source called when a current is flowing?
What is the potential difference across the terminals of the source called when a current is flowing?
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What type of energy does a generator use to maintain the potential difference in an electric circuit?
What type of energy does a generator use to maintain the potential difference in an electric circuit?
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