All Exams Test series for 1 year @ ₹349 only
Question

A man has five resistors, each of value \(\left( {\frac{1}{5}} \right){\rm{\Omega }}\). The value of the maximum resistance obtained by connecting them in series will be

The correct answer is

1 Ω

  • The total number of resistors is 5.
  • The resistance of each individual resistor is \(\left( {\frac{1}{5}} \right){\rm{\Omega }}\) .
  • The maximum resistance is observed when the resistors are connected in series.
  • We know that in series R(total) = R1 + R2 +R3………Rn.
  • R (total =  \(\left( {\frac{1}{5}} \right){\rm{\Omega }} + {\rm{\;}}\left( {\frac{1}{5}} \right){\rm{\Omega }} + {\rm{\;}}\left( {\frac{1}{5}} \right){\rm{\Omega }} + \left( {\frac{1}{5}} \right){\rm{\Omega }} + \left( {\frac{1}{5}} \right){\rm{\Omega }}.{\rm{\;\;}}\)
  • = 1 Ω.
  • The maximum value of resistance is obtained when connected in series at 1  Ω (Ohms).
Was this answer helpful?

Important Questions from Physics

  1. Ultrasonic sounds are the sounds which have frequencies?

  2. What is the colour of the light emitted by the Sun?

  3. What is the resultant resistance of 3 Ω and 6 Ω resistances connected in series?

  4. Lightning occur in the sky when two clouds:

  5. With reference to street-lighting, how do sodium lamps differ from LED lamps?

    1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.

    2. As street lights, sodium lamps have a longer life span than LED lamps.

    3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street lighting.

    Select the correct answer using the code given below.  

Need Expert Advice?

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App