Question
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A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of in a uniform horizontal magnetic field of magnitude . Obtain the maximum and average emf induced in the coil. If the coil forms a closed loop of resistance 10 Ω, calculate the maximum value of current in the coil. Calculate the average power loss due to Joule heating. Where does this power come from?
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Text solutionVerified
Maximum induced emf ;
Over a full cycle, the average emf induced in the coil is zero.
Maximum current,
Average power loss due to joule heating is
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Question Text | A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of in a uniform horizontal magnetic field of magnitude . Obtain the maximum and average emf induced in the coil. If the coil forms a closed loop of resistance 10 Ω, calculate the maximum value of current in the coil. Calculate the average power loss due to Joule heating. Where does this power come from? |
Updated On | Sep 7, 2023 |
Topic | Electromagnetic Induction |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 6 |
Upvotes | 578 |
Avg. Video Duration | 4 min |