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NEW JOYTHI PUBLICATION-MOVING CHARGES AND MAGNETISM-PRACTICE PROBLEMS FOR SELF ASSESSMENT
  1. A vertical wire carries a current of 17 A. If the neutral point is obs...

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  2. A long straiht telephone cable contains six wires , each carrying a cu...

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  3. A straight wire of lenght L carries a current i. Show that the magneti...

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  4. A square loop of wire of side a carries a current i . Calculate the ma...

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  5. Calculate the magnetic field at the point p (Refer figure ) due to str...

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  6. Two wires both of length are formed into (1) a circle and (2) a square...

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  7. A surveyer is using a magnetic compas 3m below a power line in which t...

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  8. A student makes a short electromagnet by winding 200 turns of wire aro...

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  9. The battery of an automobile is connected to a starting motor by strai...

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  10. A short conductor of length 4 cm placed parallel to a long conductor o...

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  11. A cyclotron's oscillating frequency is 5 MHz i. What should be the ...

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  12. An electron moves with a velocity vec = (3 xx 10^6 hat i +4 xx 10^(+6...

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  13. A square coil of side 10 cm consists of 20 turns and carries a current...

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  14. The coil of moving coil galvanometer twists through 90^@ when a curren...

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  15. Compare (a) current sensitivity and (b) voltage sensitivity in the fol...

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  16. A galvanometer of resistance 50 ohm shows full scale deflection when 1...

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  17. It is desired to measure a maximum current of 30 A with an ammeter of ...

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  18. A galvanometer F having 50 divisions has a current sensitivity of 1 m ...

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  19. An electron and proton moving with same speed enter a uniform magnetic...

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  20. Match the following

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