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प्रश्न
Name the physical quantity of which the unit is coulomb
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उत्तर
charge
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संबंधित प्रश्न
The unit of current is :
How are the potential difference (V), current (l) and resistance (R) related?
What do you understand by the term electric resistance?
Draw a diagram showing two bulbs connected in parallel to a dry cell.
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?
What do you mean by the potential difference? Write its SI unit.
State three factors on which the resistance of a wire depends. Explain, how does the resistance depend on the factors stated by you.
