| ⇦ | 
| ⇨ |
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: - Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
- The energy of the em waves is of the order of 15 keV. To which part of the spectrum
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- As a result of interference of two coherent sources of light, energy is
- Mass and diameter of a ring is 2 kg and 1 m respectively. The moment of inertia
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
- The energy of the em waves is of the order of 15 keV. To which part of the spectrum
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- As a result of interference of two coherent sources of light, energy is
- Mass and diameter of a ring is 2 kg and 1 m respectively. The moment of inertia
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply