The potentiometer is best for measuring voltage, as
  • A
    it has a sensitive galvanometer
  • B
    it has wire of high resistance
  • C
    it measures p.d. in closed circuit
  • D
    it measures p.d in open circuit.
AIPMT 2000, 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
    Six similar bulbs are connected as shown in the figure with a $DC$ source of $emf\; E$, and zero internal resistance. The ratio of power consumption by the bulbs when $(i)$ all are glowing and $(ii)$ in the situation when two from section $A$ and one from section $B$ are glowing, will be
    View Solution
  • 2
    By using only two resistance coils-singly, in series, or in parallel one should be able to obtain resistances of $3$, $4$, $12$ and $16\, ohms$. The separate resistances of the coil are
    View Solution
  • 3
    The resistance of a discharge tube is
    View Solution
  • 4
    In the given circuit diagram, find the current passing through wire $CD$ (in ampere) 
    View Solution
  • 5
    The equivalent resistance and potential difference between $A$ and $B$ for the circuit is respectively
    View Solution
  • 6
    In the circuit shown below (on the left) the resistance and the emf source are both variable. The graph of seven readings of the voltmeter and the ammeter ( $V$ and $I$, respectively) for different settings of resistance and the emf, taken at equal intervals of time $\Delta t$, are shown below (on the right) by the dots connected by the curve $E F G H$. Consider the internal resistance of the battery to be negligible and the voltmeter an ammeter to be ideal devices. (Take, $R_0 \equiv \frac{V_0}{I_0}$ ).

    Then, the plot of the resistance as a function of time corresponding to the curve $E F G H$ is given by

    View Solution
  • 7
    A $10\, V$ storage battery of negligible internal resistance is connected across a $50\,\Omega $ resistor. How much heat energy is produced in the resistor in $1$ hour ............... $J$
    View Solution
  • 8
    Variation of current and voltage in a conductor has been shown in the diagram below. The resistance of the conductor is. ........... $ohm$
    View Solution
  • 9
    As the switch $S$ is closed in the circuit shown in figure, current passing through it is ................ $\mathrm{A}$
    View Solution
  • 10
    A cable of resistance $10\,\Omega $ carries electric power from a generator producing $250\, kW$ at $10000\, volt$. The current in the cable is ............. $A$
    View Solution