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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
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
- The two ends of a metal rod are maintained at temperatures 100°C and 110°C.
- Slope of PV and V for an isobaric process will be
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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