MCQ
Five resistances are connected as shown in the figure. The effective resistance between the points $A$ and $B$ is
  • $\frac{{10}}{3}\,\Omega $
  • B
    $\frac{{20}}{3}\,\Omega $
  • C
    $15\,\Omega $
  • D
    $6\,\Omega $

Answer

Correct option: A.
$\frac{{10}}{3}\,\Omega $
a
The given circuit is a balanced Wheatstone bridge type, hence it can be simplified as follows

$R_{AB}=\frac {10}{3}\,\Omega $

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

In a dark room of photography, generally red light is used. The reason is
The radioactive sources $A$ and $B$ of half lives of $2\, hr$ and $4\, hr$ respectively, initially contain the same number of radioactive atoms. At the end of $2\, hours,$ their rates of disintegration are in the ratio :
A magnetic needle suspended horizontally by an unspun silk fibre, oscillates in the horizontal plane because of the restoring force originating mainly from
Charges $Q, 2Q$ and $4Q$ are uniformly distributed in three dielectric solid spheres $1,2$ and $3$ of radii $R/2, R$ and $2 R$ respectively, as shown in figure. If magnitudes of the electric fields at point $P$ at a distance $R$ from the centre of spheres $1,2$ and $3$ are $E_1 E_2$ and $E_3$ respectively, then
A magnet oscillating in a horizontal plane has a time period of 2 second at a place where the angle of dip is $30^{\circ}$ and 3 seconds at another place where the angle of dip is $60^{\circ}$. The ratio of resultant magnetic fields at the two places is
In a $LCR$ oscillatory circuit find the energy stored in inductor at resonance. If voltage of source is $10 \,V$ and resistance is $10\, \Omega$ and inductance $=1 H$. (in $J$)
An electric dipole is kept in non-uniform electric field. It experiences
Which is the lightest element in the universe?
A circular wire loop of radius $R$ is placed in the $x$-y plane centered at the origin $O. A$ square loop os side $a ( a << R$ ) having two turns is placed with its center at $a=\sqrt{3} \ R$ along the axis of the circular wire loop, as shown in figure. The plane of the square loop makes an angle of $45^{\circ}$ with respect to the $z$-axis. If the mutual inductance between the loops is given by

$\frac{\mu_0 a^2}{2^{p / 2} R}$, then the value of $p$ is

The electric bulbs have tungsten filaments of same length. If one of them gives 60 watt and other 100 watt, then