Explain the working of an electric bulb ? How can we increase the strength of an Electromagnet ?
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The number of turns in the coil - Increasing the number of turns in the coil increases the strength of the electromagnet. ii. The current flowing in the coil - Increasing the current flowing in the coil increases the strength of the electromagnet
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The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage. You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet.
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