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प्रश्न
If a body is charged by rubbing it, its weight
विकल्प
remains precisely constant
increases slightly
decreases slightly
may increase slightly or may decrease slightly
उत्तर
may increase slightly or may decrease slightly
If a body is rubbed with another body, it'll either gain some electrons from the other body and become negatively charged or it'll lose some electrons to the other body and become positively charged. Gain of electrons increases the weight of a body slightly and loss of electrons reduces the weight slightly.
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संबंधित प्रश्न
A hollow cylindrical box of length 1 m and area of cross-section 25 cm2 is placed in a three dimensional coordinate system as shown in the figure. The electric field in the region is given by `vecE = 50xhati` where E is NC−1 and x is in metres. Find
(i) Net flux through the cylinder.
(ii) Charge enclosed by the cylinder.
A hollow cylindrical box of length 0.5 m and area of cross-section 25 cm2 is placed in a three dimensional coordinate system as shown in the figure. The electric field in the region is given by `vecE = 20 xhati` where E is NC−1 and x is in metres. Find
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(ii) Charge enclosed by the cylinder.
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- discontinuous only if there is a negative charge at that point.
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