Two resistors are joined in parallel whose, resultant is $\frac{6}{5} \,\Omega$. One of the resistance wire is broken and the effective resistance becomes $2 \,ohms$. Then the resistance (in $ohm$) of the wire that got broken is ..........
Medium
Download our app for free and get started
(d)
$\frac{R_1 R_2}{R_1+R_2}=\frac{6}{5}$
$R_1=2$
$\frac{2 R_2}{2+R_2}=\frac{6}{5}$
$5 R_2=6+3 R_2$
$2 R_2=6$
$R_2=3 \,\Omega$
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
- 1A cube is formed with ten identical resistances $R$ (thick lines) and two shorting wires (dotted lines) along the arms $A C$ and $B D$ as shown in the figure below. Resistance between point $A$ and $B$ is ...........$\Omega$View Solution
- 2The number of electrons flowing per second in the filament of a $110 \mathrm{~W}$ bulb operating at $220 \mathrm{~V}$ is : (Given $\mathrm{e}=1.6 \times 10^{-19} \mathrm{C}$ )View Solution
- 3View SolutionA bird sitting on a single high tension wire does not get electrocuted because
- 4The length of a given cylindrical wire is increased to double of its original length. The percentage increase in the resistance of the wire will be..... $\%$.View Solution
- 5In the given figure the ratio of current in $8\,\Omega $ and $3\,\Omega $ will beView Solution
- 6The thermo $e.m.f.$ of a thermo-couple is $25\,\mu V{/^o}C$ at room temperature. A galvanometer of $40\, ohm$ resistance, capable of detecting current as low as ${10^{ - 5}}\,A,$ is connected with the thermocouple. The smallest temperature difference that can be detected by this system is ................ $^oC$View Solution
- 7A current of $2\, mA$ was passed through an unknown resistor which dissipated a power of $4.4\, W$. Dissipated power when an ideal power supply of $11\, V$ is connected across it isView Solution
- 8View SolutionSee the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ?
- 9The energy consumed in $1\, Kwatt$ electric heater in $30$ seconds will beView Solution
- 10View 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