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प्रश्न
उत्तर
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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.
What do you understand by the term resistance?
'The resistance of a wire is 1 ohm'. Explain the meaning of this statement.
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
Name the physical quantity of which the unit is ohm
A cell of potential difference 12 V is connected to a bulb. The resistance of filament of bulb when it glows is 24Ω. Find the current drawn from the cell.
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
Which sphere is at higher potential before electrical contact on the basis of convention?
The following Figure represents a negatively charged gold Ieaf electroscope. Label the parts, P, Q, and R and the estate whether each is an insulator or a conductor. Also, indicate the distribution of charges on the system in the diagram.
Write SI unit of
Electric current,
