Home
Class 12
PHYSICS
A battery is combination of two or more ...

A battery is combination of two or more cells. In the following figure , a single battery is represented in which two cells of emf `epsi_1` and `epsi_2` and internal resistance `r_1` and `r_2` respectively are connected.

The equivalent internal resistance of the combination is :

A

`(r_1 + r_2)/(r_1 r_2)`

B

`r_1 + r_2`

C

`(r_1 r_2)/(r_1 + r_2)`

D

`r_1 - r_2`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2022 TERM 1 SET 2

    XII BOARDS PREVIOUS YEAR|Exercise SECTION B|24 Videos

  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos

  • QUESTION PAPER 2023

    XII BOARDS PREVIOUS YEAR|Exercise Question|43 Videos

Similar Questions

Explore conceptually related problems

Two cells of emfs epsilon_(1)and epsilon_(2) and internal resistances r_(1)and r_(2) respectively are connected in parallel . Obtain expressions for the equivalent (i) resistance and , (ii) emf of the combination.

Two cells of emf 3V and 5V and internal resistance r_(1) and r_(2) respectively are in series with an external resistance R. if the p.d. across 1 st cell is zero, then R is

Two batteries of emf epsi_(1) and epsi_(2)(epsi_(2) gt epsi_(1)) and internal resistance r_(1) and r_(2) respectively are connected in parallel as shown in figure.

Two batteries of emfs 2 V and 1 V of internal resistances 1Omega and 2Omega respectively are connected in parallel. The effective emf of the combination is

Five cells each of emf E and internal resistance r are connecte in series. Due to oversight one cell is connected wrongly . The equivalent emf and internal resistance of the combination is

In the series combination of n cells each cell having emf epsilon and internal resistance r. If three cells are wrongly connected, then total emf and internal resistance of this combination will be

Two cells of emf E_1 and E_2 having internal resistance r _1 and r_2 are connected in parallel. Calculate Eeq and req for the combination.