Advertisements
Advertisements
प्रश्न
What do you understand by the term quantity of electric charge?
Advertisements
उत्तर
Quantity of electric charge: The number of charge (electrons) which drift from lower to higher potential is called quantity of charge.
APPEARS IN
संबंधित प्रश्न
Name one D.C. source and one A.C. source.
Name the physical quantitiy of which the unit is ampere
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
Which sphere is at lower potential before electrical contact on the basis of convention?
State and define the SI unit of electric current.
State two characteristics of resistance in the parallel circuit.
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?
A wire of resistance 1 Ω is stretched to double its length. What will happen to the resistance of the stretched wire?
