The resistance of a wire is$10\,\Omega $. Its length is increased by $10\%$ by stretching. The new resistance will now be .......... $\Omega$
  • A$12$
  • B$1.2$
  • C$13$
  • D$11$
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
    A student was trying to construct the circuit shown in the figure below marked $(a)$, but ended up constructing the circuit marked $(b)$. Realising her mistake, she corrected the circuit, but to her surprise, the output voltage (across $R$ ) did not change. The value of resistance $R$ is ............ $\Omega$
    View Solution
  • 2
    The circuit shown here is used to compare the emf of two cells $E_1$ and $E_2 (E_1 > E_2)$. The null point is at $C$ when the galvanometer is connected to $E_1$. When the galvanometer is connected to $E_2$, the null point will be
    View Solution
  • 3
    Each of the resistance in the network shown in fig. is equal to $R$. The resistance between the terminals $A$ and $B$ is
    View Solution
  • 4
    In a potentiometer experiment, the galvanometer shows no deflection when a cell is connected across $60\, cm$ of the potentiometer wire. If the cell is shunted by a resistance of $6\,\Omega $, the balance is obtained across $50\, cm$ of the wire. The internal resistance of the cell is .............. $\Omega $
    View Solution
  • 5
    The electric field $E$, current density $J$ and conductivity $\sigma$ of a conductor are related as
    View Solution
  • 6
    In the given circuit ' $a$ ' is an arbitrary constant. The value of $m$ for which the equivalent circuit resistance is minimum, will be $\sqrt{\frac{ x }{2}}$. The value of $x$ is ...........
    View Solution
  • 7
    In the following circuit, bulb rated as $1.5\, V$, $0.45\, W$. If bulbs glows with full intensity then what will be the equivalent resistance between $X$ and $Y$ ............. $\Omega$
    View Solution
  • 8
    A $25\, W$, $ 220\, V$ bulb and a $100\, W$, $220\, V$ bulb are connected in parallel across a $440\, V$ line
    View Solution
  • 9
    Find the equivalent resistance between the points $a$ and $b$ .......... $\Omega$
    View Solution
  • 10
    Two square metal plates $A$ and $B$ are of the same thickness and material. The side of $B$ is twice that of $A$. These are connected as shown in series. If the resistances of $A$ and $B$ are denoted by $R_A$ and $R_B,$ then $(R_A/R_B)$ is
    View Solution