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A moving coil galvanometer can be conver...

A moving coil galvanometer can be converted into a voltmeter by connecting :

A

an ammeter by connecting a high resistance in series with it

B

an ammeter by connecting a high resistance in parallel to it

C

a voltmeter by shunting a low resistance to it

D

a voltmeter by connecting a high resistance in series

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The correct Answer is:
D
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A galvanometer can be converted into an ammeter by connecting

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A galvanometer (coil resistance 99 Omega .) is converted into an ammeter using a shunt of 1 Omega and connected as shown in figure (a). The ammeter reads 3 A . The same galvanometer is convened into a voltmeter by connecting a resistance of 101 Omega in series. This voltmeter is connected at, shown in figure (b). Its reading is found to be 4/5 of the full scale reading. Find : (a) internal resistance r of the cell (b) range of the ammeter and voltmeter (c) full scale deflection current of the galvanometer.

A moving coil galvnometer is converted into an ammeter reading up to 0.03 A by connecting a shunt of resistance r/4 . What is the maximum current which can be sent through this galvanometer if no shunt is used (here r=resistance of galvanometer)

A galvanometer coil has a resistance of 50 Omega and the meter shows full scale deflection for a current of 5 mA . This galvanometer is converted into a voltmeter of range 0 - 20 V by connecting

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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
  1. The coil of a tangent galvanométer is put in the magnetic meridian.

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  2. The plane of the coil of tangent galvanometer is kept parallel to magn...

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  3. The magnetic needle of a tangent galvanometer is defiected at an angle...

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  4. If 'r' is the radius and 'n' is number of turns of coil of a T.G, then...

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  5. A rectangular loop carrying a current i(2) situated near a long straig...

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  6. When a current loop is placed in a uniform magnetic field i) barF(R)...

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  7. A flat , rectangular coil, carrying current, is placed beside a long s...

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  8. A moving coil galvanometer can be converted into a voltmeter by connec...

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  9. The correct statement among the following is:

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  10. Statement A : The resistance of ideal ammeter is zero Statement B : ...

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  11. Statement A: Ammeter is a low resistance galvanometer Statement B: V...

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  12. To increase the range of a voltmeter we need to connect a suitable:

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  13. An ammeter and a voltmeter of resistance R are connected in series to ...

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  14. Two identical galvanometers are converted into an ammeter and a millia...

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  15. A galvanometer of resistance, G, is shunted by a resistance S ohm. To ...

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  16. A galvanometer can be converted into either an ammeter or a voltmeter....

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  17. The correct match is

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  18. The correct match is

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  20. Arrang the following in decreasing order of their boiling points. A....

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