A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series

A Potentiometer Wire Of Length 10 M And Resistance 10 Physics Question

A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series with a resistance box and a 2 volt battery. If a potential difference of 100mV is balanced across the whole length of potentiometer wire, then the resistance introduced in the resistance will be

Options

(a) 1900Ω
(b) 900Ω
(c) 190Ω
(d) 90Ω

Correct Answer:

190Ω

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

Related Questions:

  1. A certain current on passing through a galvanometer produces a deflection
  2. Three capacitors each of capacitance C and of breakdown voltage V are joined in series
  3. The electric resistance of a certain wire of iron is R. If its length and radius
  4. A moving coil galvanometer of resistance 100 Ω is converted to ammeter by a resistance
  5. A train of mass 2x 10⁵ kg has a constant speed of 20 m/s up a hill inclined

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Your email address will not be published.


*