- 1(current)
Q. No.In the above diagram, a strong bar magnet is moving towards solenoid-\(2\) from solenoid-\(1\). The direction of induced current in solenoid-\(1\) and that in solenoid-\(2\), respectively, are through the directions:
| 1. | \(BA\) and \(CD\) | 2. | \(AB\) and \(CD\) |
| 3. | \(BA\) and \(DC\) | 4. | \(AB\) and \(DC\) |
Subtopic: Â Faraday's Law & Lenz Law |
From NCERT
NEET - 2024
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A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
Choose the correct statement\((\mathrm s )\) from the options given below:
| \(\mathrm A.\) | hold the sheet there if it is magnetic. |
| \(\mathrm B.\) | hold the sheet there if it is non-magnetic. |
| \(\mathrm C.\) | move the sheet away from the pole with uniform velocity if it is conducting. |
| \(\mathrm D.\) | move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar. |
| 1. | \(\mathrm A\) and \(\mathrm C\) only |
| 2. | \(\mathrm A\), \(\mathrm C\) and \(\mathrm D\) only |
| 3. | \(\mathrm C\) only |
| 4. | \(\mathrm B\) and \(\mathrm D\) only |
Subtopic: Â Faraday's Law & Lenz Law |
 55%
From NCERT
NEET - 2024
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A conducting circular loop of face area \(2.5 \times 10^{-3}~\text{m}^2\) is placed perpendicular to a magnetic field which varies as \(B=0.5~\text{sin}(100 \pi t)~\text{T}\). The magnitude of induced EMF at time \(t= 0~\text{s}\) is:
1. \(0.125 \pi~ \text{mV}\)
2. \(125 \pi ~\text{mV}\)
3. \(125 \pi~\text{V}\)
4. \(12.5 \pi~\text{mV}\)
1. \(0.125 \pi~ \text{mV}\)
2. \(125 \pi ~\text{mV}\)
3. \(125 \pi~\text{V}\)
4. \(12.5 \pi~\text{mV}\)
Subtopic: Â Faraday's Law & Lenz Law |
 68%
From NCERT
NEET - 2024
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A big circular coil with \(1000\) turns and an average radius of \(10~\text{m}\) is rotating about its horizontal diameter at a rate of \(2~\text{rad s}^{-1}.\) The vertical component of the Earth's magnetic field at that location is \(2\times 10^{-5}~\text{T},\) and the electrical resistance of the coil is \(12.56~\Omega,\) the maximum induced current in the coil will be:
| 1. | \(2~\text{A}\) | 2. | \(0.25~\text{A}\) |
| 3. | \(1.5~\text{A}\) | 4. | \(1~\text{A}\) |
Subtopic: Â Faraday's Law & Lenz Law |
 58%
From NCERT
NEET - 2022
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The magnetic flux linked to a circular coil of radius \(R\) is given by:
\(\phi=2t^3+4t^2+2t+5\) Wb.
What is the magnitude of the induced EMF in the coil at \(t=5\) s?
1. \(108\) V
2. \(197\) V
3. \(150\) V
4. \(192\) V
Subtopic: Â Faraday's Law & Lenz Law |
 86%
From NCERT
NEET - 2022
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The magnetic flux linked with a coil (in Wb) is given by the equation \(\phi=5 t^2+3 t+60\). The magnitude of induced emf in the coil at \(t=4\) s will be:
1. \(33\) V
2. \(43\) V
3. \(108\) V
4. \(10\) V
Subtopic: Â Faraday's Law & Lenz Law |
 89%
From NCERT
NEET - 2020
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A \(800\) turn coil of effective area \(0.05~\text{m}^2\) is kept perpendicular to a magnetic field \(5\times 10^{-5}~\text{T}\). When the plane of the coil is rotated by \(90^{\circ}\)around any of its coplanar axis in \(0.1~\text{s}\), the emf induced in the coil will be:
| 1. | \(0.02~\text{V}\) | 2. | \(2~\text{V}\) |
| 3. | \(0.2~\text{V}\) | 4. | \(2\times 10^{-3}~\text{V}\) |
Subtopic: Â Faraday's Law & Lenz Law |
 67%
From NCERT
NEET - 2019
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- 1(current)
Q. No.
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