The potential difference across $8\, ohm$ resistance is $48\, volt$ as shown in the figure. The value of potential difference across $X$ and $Y$ points will be ............. $volt$
Diffcult
Download our app for free and get startedPlay store
(a) The given circuit can be redrawn as follows
Resistance between $A$ and $B$ $ = \frac{{24 \times 8}}{{32}} = 6\,\Omega $
Current between $A$ and $B$ = Current between $X$ and $Y$ $ = i = \frac{{48}}{6} = 8\,A$
Resistance between $X$ and $Y$ $ = (3 + 10 + 6 + 1) = 20\,\Omega $
$==>$ Potential difference between $X$ and $Y$ = $8 × 20 = 160 \,V$
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
    A potentiometer consists of a wire of length $4\, m$ and resistance $10\,\Omega $. It is connected to a cell of $e.m.f.$ $2\, V$. The potential difference per unit length of the wire will be ............. $V/m$
    View Solution
  • 2
    The reading of the ammeter as per figure shown is
    View Solution
  • 3
    For a cell of $e.m.f.$ $2\,V$, a balance is obtained for $50\, cm$ of the potentiometer wire. If the cell is shunted by a $2\,\Omega $ resistor and the balance is obtained across $40\, cm$ of the wire, then the internal resistance of the cell is ............. $\Omega $
    View Solution
  • 4
    When current flows through a conductor, then the order of drift velocity of electrons will be
    View Solution
  • 5
    In the circuit shown, $R_1$ is increased. What happens to the reading of the voltmeter (ideal)?
    View Solution
  • 6
    A Daniel cell is balanced on $125\,cm$ length of a potentiometer wire. Now the cell is short-circuited by a resistance $2\, ohm$ and the balance is obtained at $100\,cm$. The internal resistance of the Daniel cell is .............. $ohm$
    View Solution
  • 7
    For what value of unknown resistance $X$, the potential difference between $B$ and $D$ will be zero in the circuit shown in the figure ............... $\Omega$
    View Solution
  • 8
    A wire has resistance $12\,\Omega $. It is bent in the form of a circle. The effective resistance between the two points on any diameter is equal to ................ $\Omega$
    View Solution
  • 9
    Resistance are connected in a meter bridge circuit as shown in the figure. The balancing length $l_{1}$ is $40\,cm$. Now an unknown resistance $x$ is connected in series with $P$ and new balancing length is found to be $80\,cm$ measured from the same end. Then the value of $x$ will be $.......\Omega$
    View Solution
  • 10
    The energy dissipated by a resistor is $10 \,mJ$ in $1\,s$ when an electric current of $2\, mA$ flows through it. The resistance is $....... \Omega$

    (Round off to the Nearest Integer)

    View Solution