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The resistance of an ammeter is 13Ω and its scale is graduated for a current upto 100 amps. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 amperes by this meter. The value of shunt-resistance is
Options
(a) 2Ω
(b) 0.2Ω
(c) 2 kΩ
(d) 20Ω
Correct Answer:
2Ω
Explanation:
We know, I / Is = 1 + G / S
750 / 100 = 1 + 13/S
S = 2Ω
Related Questions: - Which of the following is not a thermodynamical coordinate?
- The electric resistance of a certain wire of iron is R. If its length and radius
- A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is not a thermodynamical coordinate?
- The electric resistance of a certain wire of iron is R. If its length and radius
- A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
- Three resistances P,Q,R each of 2Ω and an unknown resistances S form the four arms
- At the first minimum adjacent to the central maximum of a single-slit diffraction
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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