A current of $1.6\, A$ is flowing through a wire having cross-sectional area $1\, mm^2$. If density of free electrons in the material of the wire is $10^{29}\, per\, m^3$, the drift velocity of electrons will be
  • A$10^{-4}\, m/s$
  • B$10^{-3}\, m/s$
  • C$10^{-2}\, m/s$
  • D$0.1\, m/s$
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.*

Similar Questions

  • 1
    Four equal capacitors are connected to a battery as shown in the adjoining figure. The potential of $A$ and $B$ are
    View Solution
  • 2
    Three resistors having resistances $\mathrm{r}_{1}, \mathrm{r}_{2}$ and $\mathrm{r}_{3}$ are connected as shown in the given circuit. The ratio $\frac{i_{3}}{i_{1}}$ of currents in terms of resistances used in the circuit is :
    View Solution
  • 3
    Two identical cells each of emf $1.5 \,V$ are connected in parallel across a parallel combination voltmeter connected in the circuit measures $1.2 \,V$.

    The internal resistance of each cell is.................$\Omega$

    View Solution
  • 4
    In the circuit shown in figure, which of the statement is incorrect ?
    View Solution
  • 5
    Diagram shows a circuit diagram choose incorrect statement
    View Solution
  • 6
    A current of $10 \,A$ is maintained in a conductor of cross-section $1 \,cm ^2$. If the number density of free electrons be $9 \times 10^{28} \,m ^{-3}$, the drift velocity of free electrons is .......... $m / s$
    View Solution
  • 7
    Two wires that are made up of two different materials whose specific resistance are in the ratio $2 : 3$, length $3 : 4$ and area $4 : 5$. The ratio of their resistances is
    View Solution
  • 8
    Which arrangement of four identical resistances should be used to draw maximum energy from a cell of voltage $V$
    View Solution
  • 9
    The current $i_1$ and $i_2$ through the resistor $R_1 (= 10\,\Omega )$ and $R_2 (=30 \,\Omega )$ in the circuit diagram with $E_1 = 3\,V, E_2 = 3\,V$ and $E_3 = 2\,V$ are respectively:
    View Solution
  • 10
    In order to quadruple the resistance of a uniform wire, a part of its length was uniformly stretched till the final length of the entire wire was $1.5$ times the original length, the part of the wire was fraction equal to
    View Solution