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प्रश्न
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उत्तर
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संबंधित प्रश्न
Name the constituents of a cell.
How is the resistance of a wire affected if its (a) length is doubled, (b) radius is doubled?
On increasing the resistance in a circuit, the current in it :
Select the correct option:
In a metallic conductor, electric current is thought to be due to movement of:
What do you mean by an electric current?
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?
