MCQ
Resistance across $A B$ as shown in figure is ............. $\Omega$
  • $2$
  • B
    $4$
  • C
    $6$
  • D
    $12$

Answer

Correct option: A.
$2$
a
(a)

$2 \,\Omega$ net resistance

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A charged body has an electric flux $\phi$ associated with it. The body is now placed inside a metallic container. The flux $\phi$, outside the container will be
A bob of mass $m$ attached to an inextensible string of length $l$ is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed $\omega\ rad/s$ about the vertical. About the point of suspension:
The value of densities of two diatomic gases at constant temperature and pressure are ${d_1}$ and ${d_2}$, then the ratio of speed of sound in these gases will be
There is a $1$ $mm $ thick layer of glycerine between a flat plate of area $100$ $cm^2$ $\&$ a big fixed plate. If the coefficient of viscosity of glycerine is $1.0$ $kg/m^{-s}$ then ....... $N$ force is required to move the plate with a velocity of $7$ $cm/s$ ?
Figure shows a circuit that contains four identical resistors with resistance $R =2.0\, \Omega,$ two identical inductors with inductance $L =2.0 \,mH$ and an ideal battery with $e m f E =9 \,V .$ The current $'i'$ just after the switch $'S'$ is closed will be .... $A$
A flat plate moves normally with a speed ${v_1}$ towards a horizontal jet of water of uniform area of cross-section. The jet discharges water at the rate of volume $V$ per second at a speed of ${v_2}$. The density of water is $\rho $. Assume that water splashes along the surface of the plate at right angles to the original motion. The magnitude of the force acting on the plate due to the jet of water is
Power supplied to a particle of mass $2\,kg$ varies with time as $P = \frac {3t^2}{2}\,W$ . Here $t$ is in seconds. If velocity of particle at $t = 0$ is $v = 0$ . The velocity of particle at time $t = 2\,sec$ . will be .............. $\mathrm{m}/ \mathrm{s}$
In a double -slit experiment, green light $\left( {5303\,\mathop A\limits^o } \right)$ falls on a double slit having a separation of $19.44\,\mu m$ and a width of $4.05\,\mu m$. The number of bright fringes between the first and the second diffraction minima is
Rutherford’s $\alpha$-particle experiment showed that the atoms have
Velocity $(v)$ and acceleration $(a)$ in two systems of units $1$ and $2$ are related as $V _{2}=\frac{ n }{ m ^{2}} v _{1}$ and $a_{2}=\frac{a_{1}}{m n}$ respectively. Here $m$ and $n$ are constants. The relations for distance and time in two systems respectively are