Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Name one D.C. source and one A.C. source.
Name the constituents of a cell.
How much is the charge on an electron?
Write symbol and state function of following component in an electric circuit :
voltmeter
State the relation between electric current; the number of electrons moving in a circuit and time in seconds.
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 is the other name of a variable resistor?
What do you mean by the potential difference? Write its SI unit.
