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A galvanometer coil has a resistance of ...

A galvanometer coil has a resistance of `12 Omega ` and the metre shows full scale deflection for a current of 3 mA. How will you convert the metre into a voltmeter of range 0 to 18 V?

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Resistance in series = 5988 Omega `
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NCERT BANGLISH-MOVING CHARGES AND MAGNETISM -ADDITIONAL EXERCISES
  1. Two concentric circular coils X and Y of radii 16 cm and 10 cm, respec...

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  2. A magnetic field of 100 G (1 G = 10^(-4) T) is required which is unifo...

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  3. For a circular coil of radius R and N turns carrying current I, the ma...

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  4. A toroid has a core (non-ferromagnetic) of inner radius 25 cm and oute...

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  5. A magnetic field that varies in magnitude from point to point but has ...

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  6. A charged particle enters an environment of a strong and non-uniform m...

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  7. An electron travelling west to east enters a chamber having a uniform ...

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  8. An electron emitted by a heated cathode and accelerated through a pote...

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  9. A magnetic field set up using Helmholtz coils (described in Exercise 4...

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  10. A straight horizontal conducting rod of length 0.45 m and mass 60 g is...

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  11. The wires which connect the battery of an automobile to its starting m...

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  12. A uniform magnetic field of 1.5 T exists in a cylindrical region of ra...

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  13. A uniform magnetic field of 3000 G is established along the positive z...

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  14. A circular coil of 20 turns and radius 10 cm is placed in a uniform ma...

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  15. A galvanometer coil has a resistance of 12 Omega and the metre shows...

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  16. A galvanometer coil has a resistance of 15 Omega and the metre shows ...

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