Sensitivity of potentiometer can be increased by
Easy
Download our app for free and get startedPlay store
The sensitivity of potentiometer can be increased by decreasing the potential gradient i.e., by increasing the length of potentiometer wire. (Sensitivity $\propto \frac{1}{P . G .}$ and Length)
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 cable of resistance $10\,\Omega $ carries electric power from a generator producing $250\, kW$ at $10000\, volt$, the power lost in the cable during transmission is ............. $kW$
    View Solution
  • 2
    A wire of resistance $160\,\Omega$ is melted and drawn in wire of one-fourth of its length. The new resistance of the wire will be $......\Omega$
    View Solution
  • 3
    Potential difference across the terminals of the battery shown in figure is .................... $V$ ($r =$ internal resistance of battery)
    View Solution
  • 4
    In the given circuit of potentiometer, the potential difference $E$ across $AB$ ( $10\, m$ length) is larger than $E _{1}$ and $E _{2}$ as well. For key $K _{1}$ (closed), the jockey is adjusted to touch the wire at point $J_{1}$ so that there is no deflection in the galvanometer. Now the first battery $\left( E _{1}\right)$ is replaced by second battery $\left( E _{2}\right)$ for working by making $K _{1}$ open and $K _{2}$ closed. The galvanometer gives then null deflection at $J _{2}$. The value of $\frac{ E _{1}}{ E _{2}}$ is $\frac{ a }{ b },$ where $a =$ ...............
    View Solution
  • 5
    If the ammeter in the given circuit reads $2\, A$, the resistance $R$ is ............ $ohm$
    View Solution
  • 6
    Every atom makes one free electron in copper. If $1.1$ $ampere$ current is flowing in the wire of copper having $1\, mm$ diameter, then the drift velocity (approx.) will be (Density of copper $ = 9 \times {10^3}\,kg\,{m^{ - 3}}$ and atomic weight = $63$)
    View Solution
  • 7
    An electric bulb is rated $60\,W$, $220\,V$. The resistance of its filament is ............. $\Omega$
    View Solution
  • 8
    For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because
    View Solution
  • 9
    The material of fuse wire should have
    View Solution
  • 10
    An ammeter $A$ of finite resistance, and a resistor $R$ are joined in series to an ideal cell $C$. $A$ potentiometer $P$ is joined in parallel to $R$. The ammeter reading is $I_0$ and the potentiometer reading is $V_0$. $P$ is now replaced by a voltmeter of finite resistance. The ammeter reading now is $I$ and the voltmeter reading is $V$.
    View Solution