- Aweber/m
- ✓without unit
- Chenry/m
- Dampere/m
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The reason of current flow in P-N junction in forward bias is
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(a) Drifting of charge carriers |
(b) Minority charge carriers |
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(c) Diffusion of charge carriers |
(d) All of these |
A voltmeter essentially consists of
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(a) A high resistance, in series with a galvanometer |
|
(b) A low resistance, in series with a galvanometer |
|
(c) A high resistance in parallel with a galvanometer |
|
(d) A low resistance in parallel with a galvanometer |
Eddy currents are produced when
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(a) A metal is kept in varying magnetic field |
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(b) A metal is kept in the steady magnetic field |
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(c) A circular coil is placed in a magnetic field |
|
(d) Through a circular coil, current is passed |
Two non-ideal identical batteries are connected in parallel. Consider the following statements
(i) The equivalent e.m.f. is smaller than either of the two e.m.f.s
(ii) The equivalent internal resistance is smaller than either of the two internal resistances
|
(a) Both (i) and (ii) are correct |
(b) (i) is correct but (ii) is wrong |
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(c) (ii) is correct but (i) is wrong |
(d) Both (i) and (ii) are wrong |
The potential energy of a particle of mass m is given by
U(x) = ![]()
l1 and l2 are the de-Broglie wavelengths of the particle, when 0 £ x £ 1 and x > 1 respectively. If the total energy of particle is 2E0, the ratio
will be
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(a) 2 |
(b) 1 |
(c) |
(d) |