Download App
When current flows through a conductor, then the order of drift velocity of electrons will be
  • A${10^{10}}\,m/\sec $
  • B${10^{ - 2}}\,cm/\sec $
  • C${10^4}\,cm/\sec $
  • D${10^{ - 1}}\,cm/\sec $
Easy
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.*
Download App

Similar Questions

  • 1
    By which of the following single load resistance the load bridge should be replaced so that the power to the load remains unchanged ................ $\Omega$
    View Solution
  • 2
    The figure shows a network of four resistances and three batteries Choose the correct alternative
    View Solution
  • 3
    Express which of the following setups can be used to verify Ohm’s law
    View Solution
  • 4
    $100$ cells each of $e.m.f.$ $5\, V$ and internal resistance $1\, ohm$ are to be arranged so as to produce maximum current in a $25\, ohms$ resistance. Each row is to contain equal number of cells. The number of rows should be
    View Solution
  • 5
    A meta sample carrying a current along $x-$ axis with density $J$ is subjected to a magnetic field $B$ (along $z-$ axis). The electric field $E$ developed along $y-$ axis is directly proportional to $J$ as well as $B$. The constant of proportionality has $SI\  unit$
    View Solution
  • 6
    The following circuit consist of a $5 \,\mu F$ capacitor, having charge $50 \,\mu C$ as shown. The switch is closed at $t=0$. The value of current in $2 \,M \Omega$ resistor at $t=0$ is ........... $\mu A$
    View Solution
  • 7
    In an electric heater $4\, amp$ current passes for $1$ minute at potential difference of $250\, volt$, the power of heater and energy consumed will be respectively
    View Solution
  • 8
    A rod of length $l$ with thermally insulated lateral surface is made of a material whose thermal conductivity $K$ varies as $K = C/T$ , where $C$ is a constant. The ends are at temperatures $T_1$ and $T_2$ . The heat current density is
    View Solution
  • 9
    A heater is designed to operate with a power of $1000 \mathrm{~W}$ in a $100 \mathrm{~V}$ line. It is connected in combination with a resistance of $10 \Omega$ and a resistance $R$, to a $100 \mathrm{~V}$ mains as shown in figure. For the heater to operate at $62.5 \mathrm{~W}$, the value of $\mathrm{R}$ should be .................. $\Omega$.
    View Solution
  • 10
    Three copper rods are subjected to different potential difference. Compare the drift speed of electrons through them. Assume that all $3$ are at the same temperature.
      Length Diameter Potential difference
    $(A)$ $L$ $3d$ $V$
    $(B)$ $2L$ $d$ $2V$
    $(C)$ $3L$ $2d$ $2V$
    View Solution