3 years ago

How can a magnetic field be used to generate an electric current?

1 answer:

3 0

<span>When a magnet moves near a wire, it's changing field causes the electrons in the wire to flow as electric current.</span>

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olasank [31]

Answer:a

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soldi70 [24.7K]

Answer:

The correct option is (b).

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We need to find the work done to increase the speed of a 1 kg toy car by 5 m/s.

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$W=\Delta K\\\\W=\dfrac{1}{2}mv^2\\\\W=\dfrac{1}{2}\times 1\times 5^2\\W=12.5\ J$

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