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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.
Related Questions: - The unit of specific conductivity is
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- Wires A and B are made from the same material. A has twice the diameter and three times
- In case of linearly polarised light, the magnitude of the electric field vector
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The unit of specific conductivity is
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- Wires A and B are made from the same material. A has twice the diameter and three times
- In case of linearly polarised light, the magnitude of the electric field vector
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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