Advertisements
Advertisements
प्रश्न
Write SI unit of
Resistance.
Advertisements
उत्तर
S.I unit of resistance is ohm.
APPEARS IN
संबंधित प्रश्न
What is an electric cell?
Name the constituents of a cell.
A current 0.2 A flows in a wire of resistance 15Ω. Find the potential difference across the ends of the wire.
State the unit of electric potential and define it.
State the kind of charge on a negative ion.
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?
