Calculate equivalent resistance across $A-B$ ............... $\Omega$
  • A$16$
  • B$1$
  • C$3$
  • D
    none of these
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
    Two wires each of radius of cross section $r$ but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio $1 : 4$, the drift velocity of electrons in the two wires will be in the ratio:
    View Solution
  • 2
    The current from the cell for the given circuit is ................ $\mathrm{A}$
    View Solution
  • 3
    A $100\, W$ bulb $B_1$, and two $60\,W$ bulbs $B_2$ and $B_3$, are connected to a $250\, V$ source, as shown in the figure. Now $ W_1, W_2$ and $W_3$ are the output powers of the bulbs $B_1, B_2$ and $B_3$, respectively. Then
    View Solution
  • 4
    $1.6\, mA$ current is flowing in conducting wire then the number of electrons flowing per second is
    View Solution
  • 5
    The potential difference across the $100\,\Omega$ resistance in the following circuit is measured by a voltmeter of $900 \,\Omega$ resistance. The percentage error made in reading the potential difference is
    View Solution
  • 6
    Two bulbs of equal wattage, one having carbon filament and the other having a tungsten filament are connected in series to the mains, then
    View Solution
  • 7
    A resistance wire connected in the left gap of a meter bridge balances a $10\, \Omega$ resistance in the right gap at a point which divides the bridge wire in the ratio $3: 2 .$ If the length of the resistance wire is $1.5 m ,$ then the length of $1\, \Omega$ of the resistance wire is $....... \times 10^{-2}\;m$
    View Solution
  • 8
    Consider the following two statements.                                     

    $(A)$ Kirchhoff's junction law follows from the conservation of charge.

     $(B)$ Kirchhoff's loop law follows from the conservation of energy.

    Which of the following is correct ?

    View Solution
  • 9
    A wire of resistance $20 \Omega$ is divided into $10$ equal parts. A combination of two parts are connected in parallel and so on. Now resulting pairs of parallel combination are connected in series. The equivalent resistance of final combination is_______.0$\Omega$.
    View Solution
  • 10
    During lighting, a current pulse, shown in figure, flows from the cloud at a height $1.5\ km$ to the ground. If the breakdown electric field of humid air is about $400\ kVm^{-1}$ , the energy released during lighting would be (in unit of $10^9\ J$ )
    View Solution