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The resistance of an ideal ammeter is...

The resistance of an ideal ammeter is

A

A) voltmeter should be zero

B

B) voltmeter should be infinite

C

C) ammeter should be zero

D

D) ammeter should be infinite

Text Solution

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The correct Answer is:
B, C
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Statement A : The resistance of ideal ammeter is zero Statement B : The resistance of ideal voltmeter is infinity Choose the correct option among the following.

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The resistance of an ammeter is 13 Omega and its scale is graduated for a current upto 100 A . After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is

A charged capacitor of unknown capacitance is connected in series with 100kOmega resistance and an ideal ammeter. The initial current in the circuit is found to be 0.2mA and the current after 7 sec is found to be 0.1mA. The potential energy that was stored in the capacitor before it was connected in the circuit is ______mJ. [Take log_(2)2=0.7 ]

The resistance of a galvanometer coil is R. What is the shunt resistance required to convert it into an ammeter of range 4 times

Assertion : Resistance of an ammeter is less than the resistance of a milliammeter. Reason : Value of shunt required in case of ammeter is more than a milliammeter.

The net resistance of an ammeter should be small to ensure that

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DC PANDEY ENGLISH-CURRENT ELECTRICITY-All Questions
  1. In the circuit shown in figure

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  2. In the circuit shown in figure potential difference across

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  3. The resistance of an ideal ammeter is

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  4. In the circuit shown in figure resistance of each wire is r. Net resis...

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  5. In the circuit shown in figure, power generated in

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  6. In the circuit shown in figure

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  7. Figure shows part of a circuit. Which points have the same potential a...

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  8. A galvanometer has resistance 1 Omega. Maximum deflection current thr...

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  9. In a potentiometer wire experiment the emf of a battery in the primary...

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  10. In the network shown in fig. , points A, B, and C are at potentials of...

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  11. The value of the resistance R in figure is adjusted such that power di...

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  12. In the circuit shown E, F, G and H are cells of emf 2V, 1V, 3V and 1V ...

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  13. A 20 m long potentiometer wire has a resistance of 20 Ohm. It is conne...

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  14. In the circuit shown, both cells are ideal and of fixed emf, the resis...

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  15. Two identical voltmeters and two identical ammeter are connected to a ...

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  16. In the circuit shown, total power supplied by an ideal battery is 80 W...

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  17. In the circuit shown, total power supplied by an ideal battery is 80 W...

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  18. In the circuit shown, total power supplied by an ideal battery is 80 W...

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  19. In the circuit shown in figure Current through R(2) is zero if R...

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  20. In the circuit shown in figure Current thorugh R(1) is independen...

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