The potential drop across the $3$ $\Omega$ resistor is ............... $V$
Medium
Download our app for free and get started
Equivalent resistance $R = 4 + \frac{{3 \times 6}}{{3 + 6}} = 6\,\Omega $ and main current $i = \frac{E}{R} = \frac{3}{6} = 0.5\,A$
Now potential difference across the combination of $3$ $\Omega$ and $6$ $\Omega$, $V = 0.5 \times \left( {\frac{{3 \times 6}}{{3 + 6}}} \right) = 1\,Volt$
The same potential difference, also develops across $3$ $\Omega$ resistance.
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
- 1For the given circuit the current through battery of $6\,V$ just after closing the switch ' $S$ ' will be$.......A$.View Solution
- 2View SolutionThe resistance of a conductor increases with
- 3As shown in the figure, a potentiometer wire of resistance $20\,\Omega$ and length $300\,cm$ is connected with resistance box (R.B.) and a standard cell of emf $4\,V$. For a resistance ' $R$ ' of resistance box introduced into the circuit, the null point for a cell of $20\,mV$ is found to be $60\,cm$. The value of ' $R$ ' is $.....\Omega$View Solution
- 4In circuit shown below, the resistances are given in $ohms$ and the battery is assumed ideal with emf equal to $3\, volt$. The voltage across the resistance $R_4$ is ................. $V$View Solution
- 5A $220\, volt$ and $800\, watt$ electric kettle and three $220\, volt$ and $100\, watt$ bulbs are connected in parallel. On connecting this combination with $220\, volt$ electric supply, the total current will be ................ $ampere$View Solution
- 6The number density of free electrons in copper is nearly $8 \times 10^{28}\,m ^{-3} . A$ copper wire has its area of cross section $=2 \times 10^{-6}\,m ^2$ and is carrying a current of $3.2\,A$. The drift speed of the electrons is $.....\times 10^{-6}\,ms ^{-1}$.View Solution
- 7View SolutionAssertion : Bending a wire does not effect electrical resistance.
Reason : Resistance of wire is proportional ot resistivity of material.
- 8View SolutionDiagram shows a circuit diagram choose incorrect statement
- 9A current of $10 \,A$ is maintained in a conductor of cross-section $1 \,cm ^2$. If the number density of free electrons be $9 \times 10^{28} \,m ^{-3}$, the drift velocity of free electrons is .......... $m / s$View Solution
- 10Consider the circuit shown in the figure. The current $I_3$ is equal toView Solution
