Motors and Generators

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What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It consists of a wire wound into a coil around a core, usually made of iron.

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How does energy flow through a motor?

Back

The flow of energy through a motor is: battery -> electrical current -> copper wire rotor -> magnet -> mechanical energy.

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What is the role of a copper wire rotor in a motor?

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The copper wire rotor in a motor conducts electrical current, which interacts with the magnetic field to produce mechanical energy.

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What happens when a wire with a current is placed in a magnetic field?

Back

When a wire with a current is placed in a magnetic field, electrical energy can be transformed into mechanical energy.

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What is an electric motor?

Back

An electric motor is a device that converts electrical energy into mechanical energy.

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What is a generator?

Back

A generator is a device that converts mechanical energy into electrical energy.

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What is the difference between an electric motor and a generator?

Back

An electric motor converts electrical energy into mechanical energy, while a generator converts mechanical energy into electrical energy.

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What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be observed. It is produced by moving electric charges.

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What is the purpose of an iron core in an electromagnet?

Back

The iron core enhances the magnetic field produced by the coil of wire, making the electromagnet stronger.

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What is mechanical energy?

Back

Mechanical energy is the energy that an object possesses due to its motion or position.

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