The resistance of a conductor is $5\, ohm$ at $50\,^oC$ and $6\, ohm$ at $100\,^oC$. Its resistance at $0\,^oC$ is ................ $ohm$
  • A$1$
  • B$2$
  • C$3$
  • D$4$
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
    In the given circuit all resistances are of value $R\,ohm$ each. The equivalent resistance between $A$ and $B$ is 
    View Solution
  • 2
    Some electric bulbs are connected in series across a $220\, V$ supply in a room. If one bulb is fused then remaining bulbs are connected again in series across the same supply. The illumination in the room will
    View Solution
  • 3
    Find out the equivalent resistance between the points $a$ and $b$
    View Solution
  • 4
    A current of $2\,A$ flows through a wire of crosssectional area $25.0\,mm ^2$. The number of free electrons in a cubic meter are $2.0 \times 10^{28}$. The drift velocity of the electrons is $...............\times 10^{-6}\,ms ^{-1}$ (given, charge on electron $=1.6 \times 10^{-19}\,C$ )
    View Solution
  • 5
    A wire of resistance $R_{1}$ is drawn out so that its length is increased by twice of its original length.The ratio of new resistance to original resistance is.
    View Solution
  • 6
    A beam contains $2 \times 10^8$ doubly charged positive ions per cubic centimeter, all of which are moving with a speed of $10^5 \,m/s$. The current density is ............. $A/m^2$
    View Solution
  • 7
    A student obtained following observations in an experiment of meter bridge to find the unknown resistance of the circuit The most accurate value of unknown resistance is ............ $\Omega$
    S.No. $R$ $l$ $100-l$ $S = \left( {\frac{{100 - l}}{l}} \right)R$
    $1$ $20\,\Omega $ $43$ $57$ $26.51\,\Omega $
    $2$ $30\,\Omega $ $51$ $49$ $28.82\,\Omega $
    $3$ $40\,\Omega $ $59$ $41$ $27.80\,\Omega $
    $4$ $60\,\Omega $ $70$ $30$ $25.71\,\Omega $
    View Solution
  • 8
    The current flowing through the $1 \Omega$ resistor is $\frac{\mathrm{n}}{10} \ A. $ The value of $n$ is. . . . . . .
    View Solution
  • 9
    Time taken by a $836\; W$ heater to heat $1\; litre$ of water from $10^{\circ} C$ to $40^{\circ} C$ is
    View Solution
  • 10
    A $3\, volt$ battery with negligible internal resistance is connected in a circuit as shown in the figure. The current $I$, in the circuit will be ............. $A$
    View Solution