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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: - In a parallel plate capacitor of capacitance C, a metal sheet is inserted
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a parallel plate capacitor of capacitance C, a metal sheet is inserted
- If angular momentum of a body is increased by 200% its kinetic energy will increase
- The number of photons of wavelength of 540 nm emitted per second by an electric bulb
- If v is the speed of sound in air, then the shortest length of the closed pipe
- If a body travels half the distance with velocity v1 and the next half with velocity v2
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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