Question

For designing a voltmeter of range 50 V 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 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 :

• A. (A) and (C)
• B. (A) and (B)
• C. (C) and (D)
• D. (C) and (E)

Answer 1

Answer: (A)

(A) and (C)

Answer 2

The correct option is(A): (A) and (C)