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Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as

A. Joule's Law

B. Coulomb's Law

C. Faraday's first law of electromagnetic induction

D. Faraday's second law of electromagnetic induction

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  15. A one cubic cm of copper has how many free electrons at room temperature?
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  17. The electric flux density is a ________ quantity.
  18. The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
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    If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 10^-8 ?a then its resistivity is
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