Two batteries of $e.m.f.$ $4\,V$ and $8 \,V$ with internal resistances $1\, \Omega$ and $2\,\Omega$ are connected in a circuit with a resistance of $9 \,\Omega$ as shown in figure. The current and potential difference between the points $P$ and $Q$ are
A$\frac{1}{3}\,A$ and $3\,V$
B$\frac{1}{6}\,A$ and $4\,V$
C$\frac{1}{9}\,A$ and $9\,V$
D$\frac{1}{2}\,A$ and $12\,V$
AIPMT 1988, Medium
Download our app for free and get started
A$\frac{1}{3}\,A$ and $3\,V$
a Applying Kirchoff's voltage law in the given loop.
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.*
An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of $4/3$ and $2/3$, then the ratio of the currents passing through the wire will be
What will be the most suitable combination of three resistors $A =2\, \Omega, B =4\, \Omega, C =6\, \Omega$ so that $\left(\frac{22}{3}\right)\Omega$ is equivalent resistance of combination$?$
Resistances are arranged in a cyclic order to form a balanced wheatstone bridge as shown in figure. Ratio of power consumed in the branches $P + Q$ and $R + S$ is