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(a) Define electirc current. What is the SI unit of electric current. (b) One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the current flowing through the conductor? (c) Which instrument is used to measure electric current ? How should it be connected in a circuit? (d) What is the conventional direction of the flow of electric current ? How does it differ from te direction of flow of electron? (e) A flash of lightning carries 10 C of charge which flows for 0.01 s. What is the current? If the voltage is 10 MV, What is the energy? |
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Answer» (a) Define electirc current. What is the SI unit of electric current. |
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