$\mathrm{A}$ circuit is comprised of eight identical batteries and a resistor $R = 0.8\,\Omega$ . Each battery has an $\mathrm{emf}$ of $1.0\, V$ and internal resistance of $0.2\,\Omega$ . The voltage difference across any of the battery is ............. $V$
Diffcult
Download our app for free and get started
In loop $(1)$
$4-0.8 I-0.8\left(I-I_{1}\right)=0$
$2 I-I_{1}=5 \ldots(1)$
In loop $(2)$
$4-0.8 I_{1}+0.8\left(I-I_{1}\right)=0$
$-I+2 I_{1}=5 \ldots(2)$
From $(1)$ and $(2)$ $I_{1}=I=5 \mathrm{Amp}$
Voltage drop across any battery
$V=E-I r=1-5 \times 0.2=0 V$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1In a wire of circular cross-section with radius $r$, free electrons travel with a drift velocity $V$ when a current $I$ flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is $2V$View Solution
- 2If the resistivity of a potentiometer wire be $\rho $ and area of cross-section be $A$, then what will be potential gradient along the wireView Solution
- 3The equivalent resistance of the arrangement of resistances shown in adjoining figure between the points $A$ and $B$ is ............... $ohm$View Solution
- 4The equivalent resistance between $A$ and $B$ of the network shown in figureView Solution
- 5Find charge stored on the capacitor in steady state condition .............. $\mu C$View Solution
- 6In the adjoining circuit shown the potential difference between points $A$ and $B$ will beView Solution
- 7The internal resistances of two cells shown are $0.1\,\Omega $ and $0.3\,\Omega $. If $R = 0.2\,\Omega $, the potential difference across the cellView Solution
- 8Three light bulbs of $40\, W$, $60\, W$ and $100\, W$ are connected in series with $220\, V$ source. Which one of the bulbs will glow brightest ............ $W$View Solution
- 9If $400\; \Omega$ of resistance is made by adding four $100\; \Omega$ resistance of tolerance $5 \%$ then the tolerance of the combination is .....$\%$View Solution
- 10View SolutionDiagram shows a circuit diagram choose incorrect statement
