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प्रश्न
State the two kinds of cell. Give one example of each.
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उत्तर
Two kinds of cells:
(a) Primary cell: e.g. Leclanche cell
(b) Secondary cell: Lead (or acid) accumulator
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संबंधित प्रश्न
A charge 0.5 C passes through a cross section of a conductor in 5 s . Find the current .
State and define the S.I. unit of potential difference.
Name the physical quantity of which the unit is ohm
Select the correct option:
In a metallic conductor, electric current is thought to be due to movement of:
Write SI unit of
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?
