The equivalent resistance between the points $A$ and $D$ ................ $\Omega$
  • A$10$
  • B$20$
  • C$30$
  • D$40$
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
    As the switch $S$ is closed in the circuit shown in figure, current passed through it is .................. $A$
    View Solution
  • 2
    The figure shows a tetrahedron, each side of which has a resistance $r$ If a battery is connected between any two points of the tetrahedron, then identify the correct statement $(s)$.
    View Solution
  • 3
    Assertion : A larger dry cell has higher $emf$

    Reason : The $emf$ of a dry cell is proportional to its size

    View Solution
  • 4
    When there is an electric current through a conducting wire along its length, then an electric field must exist
    View Solution
  • 5
    The resistance of a wire is $R\; ohm$. If it is melted and stretched to $'n'$ times its original length, its new resistance will be
    View Solution
  • 6
    For the arrangement of the potentiometer shown in the figure, the balance point is obtained at $a$ distance $75\,cm $ from $A$ when the key $k$ is open. The second balance point is obtained at $60\, cm$ from $A$ when the key $k$ is closed. Find the internal resistance (in $ \Omega$) of the battery $E_1$.
    View Solution
  • 7
    The ammeter $A$ reads $2\, A$ and the voltmeter $V$ reads $20\, V$. the value of resistance $R$ is (Assuming finite resistance's of ammeter and voltmeter)
    View Solution
  • 8
    A $5\,^oC$ rise in temperature is observed in a conductor by passing a current. When the current is doubled the rise in temperature will be approximately ........... $^oC$
    View Solution
  • 9
    Consider the combination of resistors as shown in figure and pick out the correct statement
    View Solution
  • 10
    A wire is connected to a battery between the point $M$ and $N$ as shown in the figure $(1)$. The same wire is bent in the form of a square and then connected to the battery between the points $M$ and $N$ as shown in the figure $(2)$. Which of the following quantities increases?
    View Solution