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The conversion of a moving coil galvanom...

The conversion of a moving coil galvanometer into a voltmeter is done by

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A moving coil galvanometer can be converted into a voltmeter by connecting a resistance in series with the galvanometer.
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The deflection in a moving coil galvanometer is

In a moving coil galvanometer is based on the

To convert a galvanometer into a voltmeter, one should connect a

Conversion of Galvanometer

Answer the following: (a) With the help of a diagram , explain the principle and working of a moving coil galvanometer . (b) What is the importance of a radial magnetic field and how is it produced ? (c) Why is it while using a moving coil galvometer as a voltmeter a high resistance in series is required whereas in an ammeter a shunt is used ?

The current sensitivity of a moving coil galvanometer can be increased by

State the underlying principles of working of a moveing coil galvanometer. Write the two reasons why a galvonmeter cannot be used as such to measure current in a given circuit.Name any two factors on which that current sensitivity of a galvanometer depends.

The resistance of a moving coil galvanometer is 20Omega . It requires 0.01 A current for full - scale deflection. The value of resistance to convert it into a voltmeter of the range 20 V will be

The best method to increase the sensitivity of a moving coil galvanometer is to increase the

The following combination are concerned with experiments of the characterization and use of a moving coil galvanometer. The series combination of variab resistance R, one 100 Omega resistor and moving coil galvanometer is connected to a mobile phone charger having negligible internal resistance. The zero of the galvanometer lies the centre and the pointer can move 30 division full scale on either side depending on the directin of current. The reading of the galvanometer is 10 divisions and the voltages across the galvanometer and 100 Omega resistor are respectively 12mV and 16 mV. The series combination of the galvanometer with a resistnce of R is conneted across an ideal voltage supply of 12 V and this time the galvanometer shows full scale defiention of 30 divisions. The value of R is nearly

AAKASH SERIES-ELECTROMAGNETICS-EXERCISE (VERY SHORT ANSWER QUESTIONS )
  1. What is the importance of Oersted's experiment?

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  2. An electric current flows in a wire from east to west- What will be t...

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  3. What is the work done in taking a north pole of strength m around a lo...

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  4. Does a current carrying circular coil produce uniform magnetic field ?

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  5. Two parallel long wires separated by a distance 'd' carry equal curren...

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  6. What is the force on a conductor of length l carrying current 'i' when...

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  7. When a charged particle moves in a uniform magnetic field at right ang...

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  8. If an electron is not deflected in passing through a certain region of...

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  9. What will be the path of a charged particle moving along the direction...

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  10. An electron beam is moving horizontally towards east. If this beam pa...

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  11. What is the direction of the force acting on a charged particle q, mov...

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  12. Does the torque on a current loop in magnetic field change, when its s...

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  13. A current carrying loop free to turn is placed in a uniform magnetic f...

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  14. Is the resistance of an ammeter greater than or less than that of the ...

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  15. Is the resistance of a voltmeter greater than or less that of the galv...

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  16. A moving coil galvanometer can measure a current of 10^(-6)A. What is ...

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  17. What is the smallest value of current that can be measured with a movi...

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  18. How do you convert a moving coil galvanometer into an ammeter?

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  19. The conversion of a moving coil galvanometer into a voltmeter is done ...

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