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Calculate the number of electrons constituting one coulomb of charge.
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V1, V2 and V3 are the p.ds. across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5 A.
Which one of the columns (a) to (d) shows the correct values of V1, V2 and V3measured in volts?
`V_1` `V_2` `V_3`
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Define the term resistivity.
State the S.I. units of electrical power.
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Electric current passes through a metallic conductor due to the movement of ______.
