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संबंधित प्रश्न
Name the instrument used to control the current in an electric circuit.
In the electric circuit shown in Figure, label the parts A, B, C, D, E, and F. State the function of each part. Show in the diagram the direction of flow of current.
State Ohm's law.
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
In which direction electronic current flows?
What do you understand by the term electric potential?
What do you understand by the term parallel circuit?
The following figure shows a metal rod PQ mounted on an insulated stand. The cap of an uncharged electroscope touches one end Q of the metal rod. A negatively charged ebonite rod is brought near the other end P of the metal rod.
(a) What charge does the end P have?
(b) What charge does the end Q have?
(c) What charge does the cap of the electroscope have?
(d) What charge does the gold leaf have?
(e) Will the leaf diverge or collapse? Give reason.
(f) If the electroscope is now earthed, what charge does the metal rod have?
'The resistance of a wire is 2 ohm'. Explain the meaning of this statement.
