Mixed Worksheet for Chapter 4 - Moving Charges and Magnetism
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Sample questions
Assertion (A) : The cylindrical soft iron core in a moving coil galvanometer only makes the magnetic field radial and does not affect the strength of the magnetic field.
Reason (R) : In a moving coil galvanometer, the plane of the coil is always perpendicular to the magnetic field.
A circular coil of 30 turns and radius 8·0 cm carrying a current of 6 A is suspended vertically in a uniform horizontal magnetic field of 1·0 T. The field lines make an angle of 30° with the plane of the coil. Calculate the magnitude of the external torque that must be applied to prevent the coil from turning. What would happen if the circular coil is replaced by a planar coil of irregular shape that encloses the same area, keeping other parameters unchanged ?
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About this Mixed Worksheet
This mixed worksheet is designed for Class 12 Physics practice from Chapter 4 - Moving Charges and Magnetism. It uses the question types selected for this worksheet and keeps the preview representative of the complete set.
Solve the questions first, then use the separate answer key to check the method and identify concepts that need revision. For more practice, continue with the chapter quiz or another worksheet below.
Frequently asked questions
How many questions are in this mixed worksheet?
The complete worksheet contains 10 questions. This page shows a fixed preview of 2 questions.
Does the worksheet include answers?
Yes. The complete download includes a questions PDF and a separate answer key PDF.
Do the sample questions change when the page is refreshed?
No. The preview is fixed and is the same for every visitor. The downloaded worksheet is generated separately.
How should I use this mixed worksheet?
Attempt the questions without the answer key, check each solution afterwards, and revise the linked chapter concepts before trying another worksheet or quiz.