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Which of these can most easily produce magnetic fields?
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
A compass needle moves when the compass is brought near a wire. What can you infer about the wire?
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
An electromagnet becomes magnetic only when
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
The region around a magent where the magnetic forces act is the
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
Why would a generator be an important part of an electrical circuit?
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
An electromagnet is produced by running an electric current through a coil of wire. How would wrapping the wire around an iron core affect the electromagnet?
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
When an electric current flowing in a wire is moved through a magnetic field, electrical energy is transformed into _____ energy.
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
Which is the best way to generate an electrical current in a coil of wire?
The strength of the electromagnet would increase
electricity passes through
rotate the coil in a magnetic field
The wire has an electric current flowing through it
electricity
magnetic field
The generator changes mechanical energy into electrical energy
mechanical
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