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Physics: Electricity and Magnetism; Properties of Light

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See attached 7 circled questions.

Note: figure not provided for question 40, and therefore no answer has been given.

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Solution Summary

The solution determines the electricity and magnetism as well as the properties of light.

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Solution 30:

A transformer is based on the principle that it creates a magnetic field when a fluctuating electric current flows through a wire. Therefore, transformers do not work with direct current where the current constantly flows in the same direction.

Thus, alternating current (AC) is required with a transformer.

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Solution provided by:
  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
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