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प्रश्न
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संबंधित प्रश्न
n electrons flow through a cross section of a conductor in time t. If charge on an electron is e, then write an expression for the current in the conductor.
(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.
How are the potential difference (V), current (l) and resistance (R) related?
What do you understand by the term electric potential?
State the kind of charge on a negative ion.
A wire of resistance 1 Ω is stretched to double its length. What will happen to the resistance of the stretched wire?