An electron experiences a force equal to its weight when placed in an electric field. The intensity of the field will be
|
(a) 1.7 |
(b) 5.0 |
(c) 5.5 |
(d) 56 N/C |
(c) 5.5 
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When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between any two of diametrically opposite points will be
|
(a) |
(b) |
(c) 4R |
(d) |
If radius of the 
nucleus is estimated to be 3.6 Fermi then the radius of 
nucleus be nearly
| (a) 4 Fermi | (b) 5 Fermi | (c) 6 Fermi | (d) 8 Fermi |
Electric field intensity at a point in between two parallel sheets with like charges of same surface charge densities (σ) is
|
(a) |
(b) |
(c) Zero |
(d) |
Three resistors each of 2 ohm are connected together in a triangular shape. The resistance between any two vertices will be
|
(a) 4/3 ohm |
(b) 3/4 ohm |
(c) 3 ohm |
(d) 6 ohm |
The possible quantum number for 3d electron are
|
(a) n = 3, l = 1, |
(b) n = 3, l = 2, |
|
(c) n = 3, l = 1, |
(d) n = 3, l =0, |
