Two sources of equal $emf$ are connected to an external resistance $R$. The internal resistances of the two sources are ${R_1}$ and ${R_2}\,({R_2} > {R_1})$. If the potential difference across the source having internal resistance ${R_2}$ is zero, then
AIEEE 2005,AIIMS 2008, Diffcult
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
- 1Two electric lamps of $40\, watt$ each are connected in parallel. The power consumed by the combination will be ........... $watt$View Solution
- 2$32$ cells, each of $emf$ $3V$, are connected in series and kept in a box. Externally, the combination shows an $emf$ of $84\, V$. The number of cells reversed in the combination isView Solution
- 3In the given figure the current through $4\,\Omega$ resistor is .................. $\mathrm{A}$View Solution
- 4You are given three bulbs of $25$, $40$ and $60\, watt$. Which of them has lowest resistanceView Solution
- 5Find the charge on the capacitor $C$ in the given circuit .................. $\mu C$View Solution
- 6Two electric bulbs ($60\,W$ and $100\,W$ respectively) are connected in series. The current passing through them isView Solution
- 7In the figure shown, the current in the $10\, V$ battery is close toView Solution
- 8View SolutionPotential gradient is defined as
- 9A wire of resistance $R_{1}$ is drawn out so that its length is increased by twice of its original length.The ratio of new resistance to original resistance is.View Solution
- 10View SolutionThe material of wire of potentiometer is