Explanation:
The displacement current is that current which comes into play in the region in which the electric field and hence the electric flux is changing with time.
Maxwell found that conduction current (I) and displacement current (Id) together have the property of continuity, although individually they may not be continuous. Maxwell also predicted that this current produces the same magnetic field as a conduction current can produce.
Displacement current is given by
$\text{I}_\text{d}=\frac{\text{dq}}{\text{dt}}=1.8\times10^{-8}\frac{\text{C}}{\text{s}}$
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In Young's double slit experiment using sodium light (λ = 5898 Å), 92 fringes are seen. If given colour (λ = 5461 Å) is used, how many fringes will be seen
|
(a) 62 |
(b) 67 |
(c) 85 |
(d) 99 |
and 
are the focal lengths of a convex lens for violet and red light respectively and 
and 
are the focal lengths of a concave lens for violet and red light respectively, then
|
(a) |
(b) |
|
(c) |
(d) |
A 50 mH coil carries a current of 2 ampere. The energy stored in joules is
|
(a) 1 |
(b) 0.1 |
(c) 0.05 |
(d) 0.5 |
The half-life of 
is 5 days. What time is taken by (7/8)th part of the sample to decay
|
(a) 3.4 days |
(b) 10 days |
(c) 15 days |
(d) 20 days |
