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प्रश्न
Name one D.C. source and one A.C. source.
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उत्तर
Source of D.C.: Cell
Source of A.C.: Mains
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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.
‘The potential difference between two conductors is 1 volt.’ Explain the meaning of this statement.
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 lower potential before electrical contact on the basis of convention?
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
What is the potential of the spheres after electrical contact?
How is potential difference related to work done and quantity of charge?
State two conditions necessary for a circuit, such that electric current flows through it.
What is the function of a switch in an electric circuit?
Is electric current a scalar quantity?
State the factors on which the electrical resistance of a wire depends.
