Navigate

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

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.

ML2012
admin:

Related Questions

  1. A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
  2. What is the value of Ā+A in the Boolean algebra?
  3. Two vessels separately contain two ideal gases A and B at the same temperature,
  4. A particle of mass M is suited at the centre of a spherical shell of same mass and radius
  5. The horizontal range and maximum height attained by a projectile are R and H,respectively