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संबंधित प्रश्न
What is a primary cell?
What is a secondary cell?
Write symbol and state function of following component in an electric circuit :
rheostat
(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.
When starter motor of a car is switched on for 0.8 s . a charge 24 C passes through the coil of the motor . Calculate the current in the coil .
‘The potential difference between two conductors is 1 volt.’ Explain the meaning of this statement.
State three factors on which the resistance of a wire depends. Explain, how does the resistance depend on the factors stated by you.
What is the physical meaning of resistance?
