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प्रश्न
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उत्तर
Two differences between charge and mass are:
(i) Electric charge can be positive, negative, or zero while the mass of the body is strictly positive.
(ii) Electric charge is quantized while the quantization of mass is not yet established.
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संबंधित प्रश्न
What is an electric cell?
State the two kinds of cell. Give one example of each.
State Ohm’s law.
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
Define electric potential in terms of energy spent.
How electric current flows in solids?
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?
battery
