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The net resistance of an ammeter should ...

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

A

to show large deflection

B

to generate less heat

C

to prevent the galvanometer

D

so that it maynot change the value of the actual current in the circuit

Text Solution

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The correct Answer is:
D
NA
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DC PANDEY-CURRENT ELECTRICITY-Level 1 Objective
  1. The net resistance of an ammeter should be small to ensure that

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  2. A Steady current flows in a metalic conductor of non uniform cross sec...

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  3. If M = mass, L = length, T = time and I = electric current, then the d...

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  4. The unit of electrical conductivity is

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  5. Through an electrolyte an electrical current is due to drift of

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  6. The current in a circuit with an external resistance of 3.75 Omega is ...

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  7. The deflection in a galnometer falls from 50 divisions to 20 divisions...

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  8. If 2% of the main current is to be passed through the galvanometer of ...

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  9. If the length of the filament of a heater is reduced by 10%, the power...

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  10. N identical current sources each of emf E and internal resistance r ar...

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  11. A 2.0 V potentiometer is used to determine the internal resistance of ...

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  12. Three resistance are joined together to form a letter Y, as shown in f...

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  13. The drift velocity of free elecrons in a conductor is v, when a curren...

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  14. A galvanometer is to be converted into an ammeter or voltmeter. In whi...

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  15. In the given circuit current flowing through the resistance 20Omega is...

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  16. An ammeter and a voltmeter are joined in sereis to a cell. Their readi...

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  17. A resistor R has power of dissipation P with cell voltage E. The resis...

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  18. In the circuit diagram shown in figure, a fuse bulb can cause all othe...

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  19. Two batteries one of the emf 3V, internal resistance 1Omega and the ot...

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  20. A part of a circuit is shown in figure. Here reading of ammeter is 5A ...

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