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A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter of range
Options
(a) 1A
(b) 1mA
(c) 100mA
(d) 10mA
Correct Answer:
1mA
Explanation:
Ig = (2 / 300) A = (2 / 300) × 1000 mA = (20 / 3) mA
Therefore, Ig = 6.67 mA
As range of ammeter cannot be decreased but can be increased only, therefore, the instrument cannot be converted to measure the range 1 mA.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bucket full of water is revolved in a vertical circle of 2m
- A man of 50 kg mass is standing in a gravity free space at a height
- A resistance R draws power P when connected to an AC source. If an inductance
- The periodic waves of intensities I₁ and I₂ pass through a region at the same time
- A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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