Q17.To know the resistance G of a galvanometer by half deflection method, a battery of emf VE and resistance R is used to deflect the galvanometer by angle θ . If a shunt of resistance S is needed to get half deflection the G, R and S are related by the equation: (1) S(R + G) = RG (2) 2S(R + G) = RG (3) 2G = S (4) 2S = G
What This Question Tests
This question tests the understanding of the half deflection method for finding galvanometer resistance, requiring analysis of current distribution in series-parallel circuits.
Concepts Tested
Formulas Used
I = V/R
I_g = (I/2)
I_g * G = I_s * S
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📋 Question Details
- Chapter
- Current Electricity
- Topic
- Galvanometer resistance by half deflection method
- Year
- 2016
- Shift
- 09 Apr Online
- Q Number
- Q17
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 3: Current Electricity
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