- A$2 \mu F$
- ✓$6 \mu F$
- C$\frac{1}{3} \mu F$
- D$\frac{2}{3} \mu F$
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Equal charges are given to two spheres of different radii. The potential will
|
(a) Be more on the smaller sphere |
|
(b) Be more on the bigger sphere |
|
(c) Be equal on both the spheres |
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(d) Depend on the nature of the materials of the spheres |
In Bohr's model, the atomic radius of the first orbit is
, then the radius of the third orbit is
|
(a) |
(b) |
(c) |
(d) |
A piece of copper and the other of germanium are cooled from the room temperature to 80 K, then which of the following would be a correct statement
|
(a) Resistance of each increases |
|
(b) Resistance of each decreases |
|
(c) Resistance of copper increases while that of germanium decreases |
|
(d) Resistance of copper decreases while that of germanium increases |