When current supplied by a cell to a circuit is $0.3 \,A$, its terminal potential difference is $0.9 \,V$. When the current supplied becomes $0.25 \,A$, its terminal potential difference becomes $1.0 \,V$. The internal resistance of the cell is ............ $\Omega$
Easy
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 order to quadruple the resistance of a uniform wire, a part of its length was uniformly stretched till the final length of the entire wire was $1.5$ times the original length, the part of the wire was fraction equal toView Solution
- 2The galvanometer deflection, when key $K_1$ is closed but $K_2$ is open, equals $\theta_0$ (see figure). On closing $K_2$ also and adjusting $R_2$ to $5\,\Omega $ , the deflection in galvanometer becomes $\frac{{\theta _0}}{5}$. The resistance of the galvanometer is, then, given by [Neglect the internal resistance of battery]: .................. $\Omega$View Solution
- 3View SolutionA wire is broken in four equal parts. A packet is formed by keeping the four wires together. The resistance of the packet in comparison to the resistance of the wire will be
- 4View SolutionThe resistivity of a wire depends on its
- 5Find out the value of current through $2\,\Omega$ resistance for the given circuit ............ $A$View Solution
- 6The figure shows a network of four resistances and three batteries The current through the branch $CF$ is ............... $A$View Solution
- 7In the potentiometer circuit as shown in the figure, the balance length $Al = 60\ cm$ when switch $S$ is open. When switch $S$ is closed and the value of $R$ is $5W$ the balance length $Al' = 50 cm.$ The internal resistance of the cell $C'$ is : .............. $\Omega$View Solution
- 8An electric bulb is rated $220\, volt$ and $100\, watt$. Power consumed by it when operated on $110\, volt$ is ............. $watt$View Solution
- 9Find current through the branch $ad$ of the circuit shown in figure. :-............. $A$View Solution
- 10The Wheatstone bridge shown in Fig. here, gets balanced when the carbon resistor used as $R_1$ has the colour code (Orange, Red, Brown). The resistors $R_2$ and $R_4$ are $80\, \Omega $ and $40\,\Omega $, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as $R_3$ would beView Solution
