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What is the force on a current element I `vecdl` in a magnetic field?

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UNITED BOOK HOUSE-MODEL PAPER SET-02-EXERCISE
  1. The binary number of 2910

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  2. If both the length of an antennam and the wavelength of the singal to ...

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  3. What is the force on a current element I vecdl in a magnetic field?

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  4. When a ferromagnetic substance is changed into paramegnetic substances...

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  5. The e.m.f of and a.c. current E=158sin 200pit V. What is the voltage a...

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  6. Rainbow is not possible in the moon,Why?

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  7. Two lenses of focal lengths 6cm and 50 cm are used in construction of ...

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  8. Construct Not gate using only NAND gate.

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  9. The value of reistance of a carbon resistor is (42xx10^5+-5%)Omega. Wh...

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  10. A bulb 60V- 120W is connectd to 220 VDC line what reistance should be ...

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  11. What is microwave? Why is ti used in RADAR?

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  12. Write two name of e.m. wave. Give one similarity and one dissimilarity...

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  13. What its the number of revolution per second of revolving electron in ...

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  14. 92^(U^(238)) undergoes a series of changes by emitting alpha and beta ...

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  15. What is modem? How is it used?

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  16. A positivley charged infinite plane sheet has surface charge densit...

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  17. The line charge density of a semicircular ring of radius R is lambda. ...

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  18. Find the potential at the centre of a square of side sqrt2 m which ca...

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  19. Find magnetic moment of an electron revolving in an orbit and hence d...

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  20. A straight wire is used ot form a semi-circular wire of radius 2cm. IF...

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