Changing the ____ of the flow of electric current in a wire coil

Physics

1 answer:

Alex Ar [27]2 years ago

6 0

Answer:

C direction

Explanation:

Reversing the direction of the flow of electric current in a wire coil reverses an electromagnet's north and south poles.

Every time the north and south poles is exchanged, the direction of flow of electric current in a w ire reverses.

An electromagnet is a form of magnet in which the magnetic effect is produced by the movement of electric current in wire.
A coil of wire wound round and connected to an electric source will produce an electromagnet.
When we change the direction of flow of the current the polarity of the poles will also change.

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At each corner of a square of side l there are point charges of magnitude Q, 2Q, 3Q, and 4Q.What is the magnitude and direction

bogdanovich [222]

Answer:

magnitude of force on charge 2Q = $\frac{KQ^{2} }{I^{2} }$

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Explanation:

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