Instantaneous displacement current of 2.0 A is set up in the space between two parallel plates of $$1~\mu F$$ capacitor. The rate of change in potential difference across the capacitor is:

1. $3×{10}^{6}$ $V/s$

2. $4×{10}^{6}$ $V/s$

3. $2×{10}^{6}$ $V/s$

4. None of these

Subtopic:  Displacement Current |
87%
From NCERT
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The S.I. unit of displacement current is:
1. Henry
2. Coulomb
3. Ampere

Subtopic:  Displacement Current |
88%
From NCERT
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A capacitor is having a capacity of 2 pF. The electric potential across the capacitor is changing with a value of $$10^{12}~\mathrm{V/s}$$. The displacement current is:

 1 2 A 2 3 A 3 6 A 4 9 A
Subtopic:  Displacement Current |
90%
From NCERT
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A variable frequency AC source is connected to a capacitor. Then on increasing the frequency:

 1 Both conduction current and displacement current will increase 2 Both conduction current and displacement current will decrease 3 Conduction current will increase and displacement current will decrease 4 Conduction current will decrease and displacement current will increase
Subtopic:  Displacement Current |
73%
From NCERT
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The charge of a parallel plate capacitor is varying as $q={q}_{0}\mathrm{sin}\omega t$. Find the magnitude of displacement current through the capacitor.
(Plate Area = A, separation of plates = d)

1. ${q}_{0}\mathrm{cos}\left(\omega t\right)$

2.

3. ${q}_{0}\omega \mathrm{cos}\omega t$

4. $\frac{{q}_{0}A\omega }{d}\mathrm{cos}\omega t$

Subtopic:  Displacement Current |
72%
From NCERT
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A larger parallel plate capacitor, whose plates have an area of 1 ${m}^{2}$, separated from each other by 1 mm, is being charged at a rate of 25.8 V/s. If the plates have dielectric constant 10, then the displacement current at this instant is:

1. 25 $\mu A$

2. 11 $\mu A$

3. 2.2 $\mu A$

4. 1.1 $\mu A$

Subtopic:  Displacement Current |
68%
From NCERT
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The maxwell's equation:

$\oint \stackrel{\to }{B}.\stackrel{\to }{dl}={\mu }_{0}\left(i+{\epsilon }_{0}.\frac{d{\varphi }_{E}}{dt}\right)$ is a statement of :

 1 Faraday's law of induction 2 Modified Ampere's law 3 Gauss's law of electricity 4 Gauss's law of magnetism

Subtopic:  Maxwell's Equations |
85%
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The figure shows a parallel plate capacitor being charged by a battery. If X and Y are two closed curves then during charging, $\oint \stackrel{\to }{B}.d\stackrel{\to }{l}$ is zero along the curve:

 1 X only 2 Y only 3 Both X & Y 4 Neither X nor Y

Subtopic:  Maxwell's Equations |
From NCERT
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If a source is transmitting an electromagnetic wave of frequency $8.2×{10}^{6}$ $Hz$, then the wavelength of the electromagnetic wave transmitted from the source will be:

 1 36.6 m 2 40.5 m 3 42.3 m 4 50.9 m
Subtopic:  Generation of EM Waves |
88%
From NCERT
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Out of the following options which one can be used to produce a propagating electromagnetic wave?

 1 a stationary charge. 2 a chargeless particle. 3 an accelerating charge. 4 a charge moving at constant velocity.

Subtopic:  Generation of EM Waves |
88%
From NCERT
NEET - 2016
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