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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: - When photons of energy hν fall on an aluminium plate (of work function E₀),
- The material suitable for making electromagnets should have
- An alternating electric field, of frequency v, is applied across the dees (radius = R)
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- When the disc rotates with uniform angulr velocity.Which of the following is not true?
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- The material suitable for making electromagnets should have
- An alternating electric field, of frequency v, is applied across the dees (radius = R)
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- When the disc rotates with uniform angulr velocity.Which of the following is not true?
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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