Explanation:
Displacement current inside a capacitor is given by:-
$\text{i}_\text{d}=\in_0\frac{\phi\text{E}}{\text{dt}}$
where $\phi_\text{E}$ is the electric flux inside the capacitor
The displacement current is developed inside a capacitor when there is a change in the electric flux linked with the capacitor.
The change in electric flux can occur in both the cases either the charge increases or decreases on the capacitor. This will lead to a change in flux linked with the coil.
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A star is moving away from the earth with a velocity of 100 km/s. If the velocity of light is 3 
then the shift of its spectral line of wavelength 5700 Å due to Doppler's effect will be
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(a) 0.63 Å |
(b) 1.90 Å |
(c) 3.80 Å |
(d) 5.70 Å |
Nuclear forces are
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(a) Short ranged attractive and charge independent |
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(b) Short ranged attractive and charge dependent |
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(c) Long ranged repulsive and charge independent |
|
(d) Long ranged repulsive and charge dependent |
Bohr's atom model assumes
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(a) The nucleus is of infinite mass and is at rest |
|
(b) Electrons in a quantized orbit will not radiate energy |
|
(c) Mass of electron remains constant |
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(d) All the above conditions |
The lines of forces due to earth's horizontal component of magnetic field are
| (a) Parallel straight lines | (b) Concentric circles |
| (c) Elliptical | (d) Parabolic |