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Which one of the following electrical meter has the smallest resistance?
Options
(a) Ammeter
(b) Milliammeter
(c) Galvanometer
(d) Voltmeter
Correct Answer:
Ammeter
Explanation:
A milliammeter will have greater resistance than ammeter because,
1. Number of turns in the coil in milliammeter is increased to compensate low value of current to create large deflection.
2. Milliammeter does not have usually a shunt in parallel because main current is very small. Ammeter usually have a shunt in parallel which makes overall resistance low.
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- A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A capacitor having a capacity of 2 μF is charged to 200V and then the plates
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
- A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT
- When three identical bulbs of 60 W-200 V rating are connected in series to a 200 V
- A black body is heated from 27° C to 127° C. The ratio of their energies of radiations
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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