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प्रश्न
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उत्तर
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संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
ammeter
‘The potential difference between two conductors is 1 volt.’ Explain the meaning of this statement.
A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.
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?
State the factors on which the electrical resistance of a wire depends.
What is the physical meaning of resistance?
