Question Detail

PHY 102 Test Compilation PHY 102 1 Objective Question
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Question

galvanometer of 50 Ω gives full scale deflection with 2 mA current. To convert it into ammeter, range of 10 A is connected with it, shunt resistance should be
Options
A 0.1 Ω
B 0.2 Ω
C 0.01 Ω
Correct Answer
D 0.02 Ω
Correct Answer

Option C is the correct answer.

Detailed Explanation

V_g = I_g R_g = 0.002 × 50 = 0.1 V. Shunt current I_sh = I - I_g = 10 - 0.002 = 9.998 A. R_sh = V_g/I_sh = 0.1/9.998 ≈ 0.01 Ω.

Hint

R_sh = (I_g R_g)/(I - I_g).

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 1
Type: Objective
Difficulty: Not specified
Question 212 of 1819
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