Copper and silicon is cooled from $300\; K$ to $60\; K$, the specific resistance
  • A
    decrease in copper but increase in silicon
  • B
    increase in copper but decrease in silicon
  • C
    increase in both
  • D
    decrease in both.
AIPMT 2001, 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
    In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the figure below. The resistance $R_3$ has temperature coefficient $0.0004{ }^{\circ} C ^{-1}$. If the temperature of $R_3$ is increased by $100{ }^{\circ} C$, the voltage developed between $S$ and $T$ will be. . . . . . . volt.
    View Solution
  • 2
    The current between $B$ and $D$ in the given figure is .............. $amp$
    View Solution
  • 3
    Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?
    View Solution
  • 4
    In the network shown in the following figure, each resistance is $1\,ohm.$ The effective resistance between $A$ and $B$ is
    View Solution
  • 5
    The current density is a solid cylindrical wire of radius $R ,$ as a function of radial distance $r$ is given by $J ( r )= J _{0}\left(1-\frac{ r }{ R }\right) .$ The total current in the radial region $r =0$ to $r =\frac{ R }{4}$ will be
    View Solution
  • 6
    Two electric bulbs whose resistances are in the ratio of $1 : 2$ are connected in series. The powers dissipated in them have the ratio
    View Solution
  • 7
    In the circuit shown in figure, which of the statement is incorrect ?
    View Solution
  • 8
    A battery of $e.m.f.$  $10\, V$ and internal resistance $3\,\Omega $ is connected to a resistor as shown in the figure. If the current in the circuit is $0.5\, A$. then the resistance of the resistor will be ............. $\Omega$
    View Solution
  • 9
    Calculate the equivalent resistance between $A$ and $B$
    View Solution
  • 10
    Calculate the equivalent resistance between $A$ and $B$
    View Solution