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For designing a voltmeter of range 50V

Q. For designing a voltmeter of range 50V and an ammeter of range 10 mA using a galvanometer which has a coil of resistance 54Ω  showing a full-scale deflection for 1 mA as in the figure.

(A) for voltmeter R ≈ 50 kΩ

(B) for ammeter r ≈ 0.2Ω

(C) for ammeter r ≈ 6Ω

(D) for voltmeter R ≈ 5 kΩ

(E) for voltmeter R ≈ 500Ω

For designing a voltmeter of range 50V

Choose the correct answer from the options given below :

(1) (C) and (E)

(2) (C) and (D)

(3) (A) and (C)

(4) (A) and (B)                                                                                                                 (JEE-2023)

Aditya Bhatt Answered question 28 January 2024
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