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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: - When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- When a bullet of mass 10 g and speed 100 ms⁻¹ penetrates up to distance 1 cm
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- When a bullet of mass 10 g and speed 100 ms⁻¹ penetrates up to distance 1 cm
- A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
- Two closed organ pipes when sounded simultaneously give 4 beats/second.
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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