# Two batteries of emf $\varepsilon _{1}$ and $\varepsilon _{2}\left ( \varepsilon_ {2}>\varepsilon _{1} \right )$and internal resistances r1 and r2 respectively are connected in parallel as shown in Figure. A. The equivalent emf $\varepsilon _{eq}$ of the two cells is between $\varepsilon _{1}$ and $\varepsilon _{2}$, i.e. $\varepsilon _{1}<\varepsilon _{eq}<\varepsilon _{2}$ B. The equivalent emf $\varepsilon _{eq}$ is smaller than 1. C. The $\varepsilon _{eq}$ is given by $\varepsilon _{eq}=1+2$always. D. $\varepsilon _{eq}$ is independent of internal resistances  r1 and r2.

The correct answer is the option (a)

Explanation: Equivalent EMF in parallel is given as:
$\varepsilon _{eq}=\frac{\varepsilon _{1}r_{2}+\varepsilon _{2}r_{1}}{r_{1}+r_{2}}$

This value will always lie between  $\varepsilon _{1}$ and $\varepsilon _{2}$

## Similar Questions

### Preparation Products

##### Knockout NEET May 2021 (One Month)

An exhaustive E-learning program for the complete preparation of NEET..

₹ 14000/- ₹ 6999/-
##### Foundation 2021 Class 10th Maths

Master Maths with "Foundation course for class 10th" -AI Enabled Personalized Coaching -200+ Video lectures -Chapter-wise tests.

₹ 350/- ₹ 112/-
##### Knockout JEE Main April 2021 (One Month)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 14000/- ₹ 6999/-
##### Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-