In the network shown in the figure, each of the resistance is equal to $2\,\Omega $. The resistance between the points $A$ and $B$ is .............. $\Omega$
AIPMT 1995, Easy
Download our app for free and get startedPlay store
(d) The equivalent circuits are as shown below
Clearly, the circuit is a balanced Wheatstone bridge. So effective resistance between $A$ and $B$ is $2\,\Omega $.
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 conductors have the same resistances at $0^{\circ} \mathrm{C}$ but their temperature coefficients of resistance are $\alpha_1$ and $\alpha_2$. The respective temperature coefficients for their series and parallel combinations are :
    View Solution
  • 2
    An electric bulb rated $50 \mathrm{~W}-200 \mathrm{~V}$ is connected across a $100 \mathrm{~V}$ supply. The power dissipation of the bulb is :
    View Solution
  • 3
    A resistor develops $500\, J$ of thermal energy in $20 \,s$ when a current of $1.5\, A$ is passed through it. If the current is increased from $1.5 \,A$ to $3\, A$ what will be the energy (in $J$) developed in $20\, s$.
    View Solution
  • 4
    Two cities are $150\,\, km$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $km$ is $8\,\, volt$ and the average resistance per km is $0.5 \,\,\Omega .$ The power loss in the wire is
    View Solution
  • 5
    If in the experiment of Wheatstone's bridge, the positions of cells and galvanometer are interchanged, then balance points will
    View Solution
  • 6
    A cylindrical conductor has uniform cross-section. Resistivity of its material increase linearly from left end to right end. If a constant current is flowing through it and at a section distance $x$ from left end, magnitude of electric field intensity is $E$, which of the following graphs is correct
    View Solution
  • 7
    A certain wire has a resistance $R$. The resistance of another wire identical with the first except having twice its diameter is
    View Solution
  • 8
    What length of the wire of specific resistance $48 \times {10^{ - 8}}\,\Omega \,\,m$ is needed to make a resistance of $4.2 \, \Omega$  .............. $m$ (diameter of wire = $0.4\, mm$)
    View Solution
  • 9
    A $10\, V$ storage battery of negligible internal resistance is connected across a $50\,\Omega $ resistor. How much heat energy is produced in the resistor in $1$ hour ............... $J$
    View Solution
  • 10
    In the figure a carbon resistor has bands of different colours on its body as mentioned in the figure. The value of the resistance is ................. $k \Omega$
    View Solution