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Which of the following is appreciable in...

Which of the following is appreciable in the making of a motor? Why?
a) A current carrying wire is kept in a uniform magnetic field.
b) A current carrying coil is kept in a uniform magnetic field.
c) A negative charge is kept in a uniform magnetic field.

Text Solution

Verified by Experts

1) 'b' is appreciable .
2) The coil will rotate in the magnetic field.
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VGS PUBLICATION-BRILLIANT-ELECTROMAGNETISM-CREATIVE QUESTION FOR NEW MODEL EXAMINATION (SEC-2) CONCEPTUAL UNDERSTANDING
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  2. Which device is used to determine the direction of magnetic field of a...

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  3. Are the magnetic field lines closed? Explain.

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  4. What are the materials required to prove that Faraday's law?

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  5. What do you conclude about magnetic field lines after conducting exper...

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  6. How would you demonstrate the presence of an induced current in the ab...

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  7. There are a) current carrying wire b) current carrying circular coil...

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  8. Mark north and south pole in the given diagram.

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  9. Draw the direction of the magnetic field at 'P'.

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  10. Draw the magnetic field lines in uniform magnetic field.

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  11. Which of the following is appreciable in the making of a motor? Why? ...

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  13. Mention two uses of solenoid.

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  14. Give one application to law of electromagnetic induction.

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  16. What is the frequency of the A.C. supplied in your house?

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  17. Which instruments detects small currents?

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  18. Name the appliances working with the principle of Induced emf

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  20. Find the length of the conductor which is moving with a speed of 10 m/...

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