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Factors Affecting the Strength of Electromagnet
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YES or NO: Electromagnet will function by letting electricity flow through it.
YES
YES or NO: The coils should loop in one direction only.
YES
YES or NO: The electric current has nothing to do with the strength of an electromagnet.
NO
YES OR NO: In constructing an electromagnet, we can use any material as core.
NO
YES or NO: The strength of an electromagnet cannot be increased.
NO
Which from the following materials can be used as a core in making an electromagnet?
C. screw driver
Which is an example of a temporary magnet?
B. electromagnet
Which part of electromagnet supplies electric current?
A. battery
To strengthen an electromagnet, there is a need to _______.
B. increase the number of turns in a coil
A magnet is _________.
D.an object that attracts or pulls certain materials like iron and steel
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