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प्रश्न
Current in a circuit flows :
विकल्प
In direction from high potential to low potential
In direction from low potential to high potential
In direction of flow of electrons
In any direction.
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उत्तर
Current in a circuit flows : In direction from high potential to low potential.
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संबंधित प्रश्न
What is a primary cell?
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
How is the resistance of a wire affected if its (a) length is doubled, (b) radius is doubled?
State SI unit of electric charge and define it.
How is potential difference related to work done and quantity of charge?
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 the factors on which the electrical resistance of a wire depends.
