A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter

A Voltmeter Of Range 2 V And Resistance 300 Cannot Physics Question

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:

  1. A hollow metal sphere of radius 10 cm is charged such that the potential on its surface
  2. A thermoelectric refrigerator works on
  3. A spring of spring constant 5 x 10³ Nm⁻¹ is streched intially by 5 cm from
  4. The velocity of a particle performing simple harmonic motion, when it passes
  5. A charge Q is uniformly distributed over a large plastic plate. The electric field

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*