Drift velocity ${v_d}$ varies with the intensity of electric field as per the relation
  • A${v_d} \propto E$
  • B${v_d} \propto \frac{1}{E}$
  • C${v_d} = {\rm{constant}}$
  • D${v_d} \propto {E^2}$
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
    A light bulb of resistance $R=16 \,\Omega$ is attached in series with an infinite resistor network with identical resistances $r$ as shown below. A $10 \,V$ battery drives current in the circuit. ............. $\Omega$ the value of $r$ such that the bulb dissipates about $1 \,W$ of power.
    View Solution
  • 2
    Two batteries, one of emf $18\,volts\;emf$ and internal resistance $2\,\Omega $ and the other of emf $12\, volt$ and internal resistance $1\,\Omega $, are connected as shown. The voltmeter $V$ will record a reading of .............. $volt$
    View Solution
  • 3
    Consider the following circuit given below. The bulb will light up, if
    View Solution
  • 4
    In Wheatstone's bridge $P = 9\, ohm$, $Q = 11\, ohm$, $R = 4\,ohm$ and $S = 6\,ohm$. How much resistance must be put in parallel to the resistance $S$ to balance the bridge ............... $ohm$
    View Solution
  • 5
    For the circuit shown in the figure, the current $I$ will be .......$A$
    View Solution
  • 6
    An electric fan and a heater are marked as $100\, watt$, $220\, volt$ and $1000\, watt$, $220\, volt$ respectively. The resistance of the heater is
    View Solution
  • 7
    A copper wire is stretched to make it $0.5\%$ longer. The percentage change in its electric resistance if its volume remains unchanged is ................ $\%$
    View Solution
  • 8
    The e.m.f. of a cell is $E\, volts$ and internal resistance is $r$ $ohm$. The resistance in external circuit is also $r$ $ohm$. The p.d. across the cell will be
    View Solution
  • 9
    If a $30\, V$, $90\, W$ bulb is to be worked on a $120\, V$ line, a resistance of how many ohms should be connected in series with the bulb ............... $ohm$
    View Solution
  • 10
    Calculate equivalent resistance across $A-B$ ............... $\Omega$
    View Solution