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By increasing the number of turns in the...

By increasing the number of turns in the coil, the strength of the magnetic field.

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What happens to the total length of the wire when the number of turns per unit length is increased ?
What are the factors affecting the strength of the magnetic field and how are they related ?
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The sensitivity of a moving coil galvanometer can be increased by (1) decreasing the couple per unit twist of the suspension (2) increasing the number of turns in the coil (3) decreasing the area of the coil (4) decreasing the magnetic field

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PEARSON IIT JEE FOUNDATION-ELECTROMAGNETISM-CONCEPT APPLICATION ( LEVEL 2)
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  2. A magnetic needle placed near a current carrying conductor deflects du...

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  3. Can we use Ampere's right hand rule to determine the deflection o...

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  4. A straight conductor carrying current produces a magnetic field around...

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  5. A transformer has 250 primary turns and 500 secondary turns. If 200 V ...

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  6. What happens if earthing is not proper in a telegraph ?

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  7. What causes the rectangular coil in a D.C. motor to rotate? Explain.

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  8. Two, current carrying conductors are placed parallel to each other. E...

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  9. Can a galvanometer as such be used for measuring the current? Explain.

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  10. A straight conductor carrying current produces a magnetic field around...

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  11. The frequency of sinusoidal A.C. voltage is 50 Hz. How many times does...

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  12. In an electromagnetic induction, what is the source of electric energy...

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  13. Two wires, A and B are placed parallel to each other in a vertical pla...

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  14. A spring made of copper is moved towards a stationary bar magnet. What...

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  15. How do you locate a current-carrying wire concealed in a wall?

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  16. Can we a transformer be used to step up or step down a D.C. voltage? E...

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  17. A magnet is dropped vertically downwards along the axis of the Alumini...

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  18. To detect electric current using a galvanoscope, the plane of the coi...

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  19. By increasing the number of turns in the coil, the strength of the mag...

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  20. Why are magnets with concave shaped poles used in a D.C. motor? What...

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