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
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