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प्रश्न
'The resistance of a wire is 1 ohm'. Explain the meaning of this statement.
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उत्तर
The resistance of a wire is 1 ohm; it means a current of 1 ampere will flow through the wire when the potential difference across it is 1 volt.
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संबंधित प्रश्न
State the two kinds of cell. Give one example of each.
Write symbol and state function of following component in an electric circuit :
cell
(a) Complete the circuit given in Fig. by inserting between the terminals A and C. an ammeter.
(b) In the diagram, mark the polarity at the terminals of ammeter and indicate clearly the direction of flow of current in the circuit when the circuit is complete.
(c) Name and state the purpose of Rh in the circuit.
State SI unit of electric charge and define it.
How many electrons constitute one unit electric charge in SI system?
Why does the filament of an electric bulb in an electric circuit get white-hot, but not the connecting wires?
