Dimensions of a block are $1\,cm \times 1\,cm \times 100\,cm$. If specific resistance of its material is $3 \times {10^{ - 7}}\,ohm - m$, the resistance between the square faces is
  • A$3 \times {10^{ - 9}} \,ohm$
  • B$3 \times {10^{ - 7}} \,ohm$
  • C$3 \times {10^{ - 5}} \, ohm$
  • D$3 \times {10^{ - 3}} \,ohm$
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
    The power rating of an electric motor which draws a current of $3.75\, amperes$ when operated at $200\, V$ is about
    View Solution
  • 2
    Two resistances ${R_1}$ and ${R_2}$ are joined as shown in the figure to two batteries of $e.m.f.$ ${E_1}$ and ${E_2}$. If ${E_2}$ is short-circuited, the current through ${R_1}$ is
    View Solution
  • 3
    In given Network the equivalent resistance between $A$ and $B$ is .............. $\Omega$
    View Solution
  • 4
    Different combination of $3$ resistors of equal resistance $R$ are shown in the figures.
    The increasing order for power dissipation is:
    View Solution
  • 5
    An electric toaster has resistance of $60\  \Omega$ at room temperature $\left(27^{\circ} \mathrm{C}\right)$. The toaster is connected to a $220 \mathrm{~V}$ supply. If the current flowing through it reaches $2.75 \mathrm{~A}$, the temperature attained by toaster is around : (if $\alpha=2 \times 10^{-4} /{ }^{\circ} \mathrm{C}$ )
    View Solution
  • 6
    The drift velocity of free electrons in a conductor is ‘$v$’ when a current ‘$i$’ is flowing in it. If both the radius and current are doubled, then drift velocity will be
    View Solution
  • 7
    A flow of $10^{7}$ electrons per second in a conducting wire constitutes a current of
    View Solution
  • 8
    A heating element has a resistance of  $100\,\Omega $ at room temperature. When it is connected to a supply of  $220\,V,$  a steady current of $2\,A$  passes in it and temperature is $500\,^oC$ more than room temperature. What is the temperature coefficient resistance of the heating element?
    View Solution
  • 9
    The current from the battery in circuit diagram shown is .............. $A$
    View Solution
  • 10
    A steady current flows in a metallic conductor of non-uniform cross-section. The quantity/quantities constant along the length of the conductor is/are
    View Solution