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प्रश्न
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उत्तर
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संबंधित प्रश्न
State the two kinds of cell. Give one example of each.
What is a primary cell?
'The resistance of a wire is 1 ohm'. Explain the meaning of this statement.
State whether the resistance of filament of a bulb will decrease, remain unchanged or increase when it glows.
Draw a diagram showing two bulbs connected in series to a dry cell.
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?
