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प्रश्न
Name the physical quantitiy of which the unit is ampere
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उत्तर
current
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संबंधित प्रश्न
(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 whether the resistance of filament of a bulb will decrease, remain unchanged or increase when it glows.
On increasing the resistance in a circuit, the current in it :
4 × 1020 electrons flow through a circuit in 10 hours. Calculate magnitude of current. [1 e- = 1.6 × 10-19 C]
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
Why does the filament of an electric bulb in an electric circuit get white-hot, but not the connecting wires?
'The resistance of a wire is 2 ohm'. Explain the meaning of this statement.
