- 1(current)
Q. No.In a coil of resistance \(100~\Omega\), a current is induced by changing the magnetic flux through it (as shown in the graph). The magnitude of the change in flux through the coil is:
1. \(200~\text{Wb}\)
2. \(225~\text{Wb}\)
3. \(250~\text{Wb}\)
4. \(275~\text{Wb}\)
Subtopic: Magnetic Flux |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA circular ring is placed in a magnetic field of \(0.4\) T. Suddenly its radius starts shrinking at the rate of \(1\) mm/s. What will be the induced EMF in the ring at \(r = 2~\text{cm?}\)
1. \(16 \pi~\mu \text{V}\)
2. \(8 \pi~\mu \text{V}\)
3. \(16 \pi~ \text{mV}\)
4. \(8 \pi~ \text{mV}\)
1. \(16 \pi~\mu \text{V}\)
2. \(8 \pi~\mu \text{V}\)
3. \(16 \pi~ \text{mV}\)
4. \(8 \pi~ \text{mV}\)
Subtopic: Magnetic Flux |
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Please attempt this question first.
Please attempt this question first.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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