The current in the following circuit is ........... $A$
  • A$\frac{1}{8}$
  • B$\frac{2}{9}$
  • C$\frac{2}{3}$
  • D$1$
AIPMT 1997, Medium
art

Download our app
and 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

  • 1
    The current in a conductor is expressed as $I=3 t^2+4 t^3$, where $I$ is in Ampere and $t$ is in second. The amount of electric charge that flows through a section of the conductor during $t=1$ s to $t=2 \mathrm{~s}$ is_______ C.
    View Solution
  • 2
    A part of circuit is shown in figure. All the ammeters are ideal. If reading of ammeter $A_1$ is $1.0\ A$ , then
    View Solution
  • 3
    The length of a potentiometer wire is $l$. $A$ cell of $\mathrm{emf}$ $E$ is balanced at a length $l/3$ from the positive end of the wire. If the length of the wire is increased by $l/2$. At what distance will the same cell give a balance point.
    View Solution
  • 4
    Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?
    View Solution
  • 5
    If two electric bulbs have $40\,W$ and $60\,W$ rating at $220\,V$, then the ratio of their resistances will be
    View Solution
  • 6
    In the given potentiometer circuit length of the wire $AB$ is $3\,m$ and resistance is $R = 4.5 \,\Omega.$ The length $AC$ for no deflection in galvanometer is ................ $\mathrm{m}$
    View Solution
  • 7
    Three bulbs of $40\,W$, $60\,W$ and $100\,W$ are arranged in series with $220\,V$. Which bulb has minimum resistance............... $W$
    View Solution
  • 8
    A student obtained following observations in an experiment of meter bridge to find the unknown resistance of the circuit The most accurate value of unknown resistance is ............ $\Omega$
    S.No. $R$ $l$ $100-l$ $S = \left( {\frac{{100 - l}}{l}} \right)R$
    $1$ $20\,\Omega $ $43$ $57$ $26.51\,\Omega $
    $2$ $30\,\Omega $ $51$ $49$ $28.82\,\Omega $
    $3$ $40\,\Omega $ $59$ $41$ $27.80\,\Omega $
    $4$ $60\,\Omega $ $70$ $30$ $25.71\,\Omega $
    View Solution
  • 9
    A piece of copper and another of germanium are cooled from room temperature to $80\, K$. The resistance of :-
    View Solution
  • 10
    A wire $50\, cm$  long and $1\;mm^2$ in cross -section carries a current of $4\; A$ when connected to a $2\; V$ battery. The resistivity of the wire is
    View Solution