Science Quiz 133

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120
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An electromagnetic field exists only when there is?

Correct! Wrong!

When the current through the coil of an electromagnet reverses, the?

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When a solenoid is activated, the force that moves the plunger is?

Correct! Wrong!

Paramagnetic materials have relative permeability?

Correct! Wrong!

If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage?

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A keeper is used to?

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When the north poles of two bar magnets are brought close together, there will be?

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The most effective and quickest may of making a magnet from soft iron is by?

Correct! Wrong!

Science Quiz 133
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