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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
- Heat is not being exchanged in a body. If its internal energy is increased, then
- A proton and an alpha particle both enter a region of uniform magnetic field B,
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
- Point masses m₁ and m₂ are placed at the opposite ends of a rigid rod of length L,
- Water rises in a vertical capillary tube up to a height of 2.0 cm.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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