The value of current through $20\,\Omega $ resistor is .................. $A$
Medium
Download our app for free and get started
Let the potential of common point is $\mathrm{O}$ and potential of all other points are as shown in figure
$\frac{x-10}{10}+\frac{x+6}{20}+\frac{x}{10}+\frac{x-10}{5}=0$
$\Rightarrow \mathrm{x}=6 \mathrm{\,V} \quad \therefore 1_{20\, \Omega}=\frac{6+6}{20}=0.6 \mathrm{\,A}$
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
- 1The sliding contact $C$ is at one fourth of the length of the potentiometer wire $( AB )$ from $A$ as shown in the circuit diagram. If the resistance of the wire $AB$ is $R _0$, then the potential drop $( V )$ across the resistor $R$ isView Solution
- 2A capacitor of capacitance $5\,\mu F$ is connected to a source of constant $emf$ of $200\,V$ for a long time, then the switch was shifted to contact $2$ from contact $1$ . The total amount of heat generated in the $500\,\Omega $ resistance, thereafter isView Solution
- 3A battery of $e.m.f.$ $3\, volt$ and internal resistance $1.0\, ohm$ is connected in series with copper voltameter. The current flowing in the circuit is $1.5\, amperes$. The resistance of voltameter will be ........... $ohm$View Solution
- 4View SolutionBy increasing the temperature, the specific resistance of a conductor and a semiconductor
- 5In the circuit shown below, if the potential at point $A$ is taken to be zero, the potential at point $B$ is .............. $V$View Solution
- 6In the following circuit, $18\,\Omega $ resistor develops $2\,J/sec$ due to current flowing through it. The power developed across $10\,\Omega $ resistance is .............. $W$View Solution
- 7If power dissipated in the circuit is $150\,W,$ then value of $R$ is ............... $\Omega$View Solution
- 8Give colors of the ring in sequence marked on a resistance of $56 \ k\Omega$ with tolerance $\pm 5\%$View Solution
- 9A new flashlight cell of $e.m.f.$ $1.5\, volts$ gives a current of $15\, amps$, when connected directly to an ammeter of resistance $0.04\,\Omega $. The internal resistance of cell is ........... $\Omega$View Solution
- 10$A$ and $B$ are two square plates of same metal and same thickness but length of $B$ is twice that of $A$. Ratio of resistances of $A$ and $B$ isView Solution
