Electromagnetic Induction & Alternating Currents-Induced EMF and Current (AIIMS Physics): Questions 1 - 3 of 10
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Question number: 1
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 1997
Question
A coil of copper having 1000 turns is placed in a magnetic field perpendicular to its plane. The cross sectional area of the coil is 0.05 m2. If it turns through 180° in 0.01 sec, then the induced emf in the coil is – [AIIMS]
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 0.2 V |
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| b. | 4 V |
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| c. | 40 V |
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| d. | 0.4 V |
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Question number: 2
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 2005
Question
A conducting ring of radius 1 meter is placed in a uniform magnetic field B of 0.01 T, oscillating with frequency 100 Hz with its plane at right angles to magnetic field. What will be the induced electric field? [AIIMS]
Choices
| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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Question number: 3
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 2005
Question
A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure. The time variation of the magnitude of emf generated across the coil during one cycle is – [AIIMS]
A Magnet Oscillate Through a Coil
In figure a magnet is made to oscillate with a particular frequency, passing through a coil.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |  Graph of Emf Verses Time (Choice-A) Figure shows the time variation of the magnitude of emf generated across the coil during one cycle. |
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| b. |  Graph of Emf Verses Time (Choice-B) Figure shows the time variation of the magnitude of emf generated across the coil during one cycle. |
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| c. |  Graph of Emf Verses Time (Choice-C) Figure shows the time variation of the magnitude of emf generated across the coil during one cycle. |
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| d. |  Graph of Emf Verses Time (Choice-D) Figure shows the time variation of the magnitude of emf generated across the coil during one cycle. |
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