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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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- A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A magnifying glass of focal length 5 cm is used to view an object by a person
- A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid
- With the decrease of current in the primary coil from 2 amperes to zero value
- Equal currents are passing through two very long and straight parallel wires
- An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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