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Questions and Answers
What is the primary function of a device that imparts electromotive force?
What is the primary function of a device that imparts electromotive force?
- Producing electric current
- Transforming electric charge
- Storing energy
- Converting energy from one form to another (correct)
What is the result of the energy conversion process in a device that imparts electromotive force?
What is the result of the energy conversion process in a device that imparts electromotive force?
- Energy is lost as heat
- Electric charge is created
- Electric current is generated
- Energy is transferred to the electric charge (correct)
What is the fundamental unit of measurement for electromotive force?
What is the fundamental unit of measurement for electromotive force?
- Watts per ohm
- Volts per ampere
- Ampere-hours per kilogram
- Joules per coulomb (correct)
What is the role of an energy source in relation to electromotive force?
What is the role of an energy source in relation to electromotive force?
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What is the relationship between electromotive force and electric charge?
What is the relationship between electromotive force and electric charge?
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Study Notes
Electromotive Force (EMF)
- Electromotive force is the energy per unit electric charge provided by an energy source.
- Examples of energy sources that impart EMF include electric generators and batteries.
- In these energy sources, energy is converted from one form to another.
- This energy conversion occurs as the device performs work on the electric charge being transferred within itself.
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