A potentiometer is an ideal device of measuring potential difference because
  • A
    It uses a sensitive galvanometer
  • B
    It does not disturb the potential difference it measures
  • C
    It is an elaborate arrangement
  • D
    It has a long wire hence heat developed is quickly radiated
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 circuit as shown in figure the
    View Solution
  • 2
    In a wire of cross section radius $r,$ free electrons travel with drift velocity $v$ when a current $I$ flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is $2v$  ?
    View Solution
  • 3
    $3$ identical bulbs are connected in series and these together dissipate a power $P$. If now the bulbs are connected in parallel, then the power dissipated will be
    View Solution
  • 4
    A meter bridge setup is shown in the figure. It is used to determine an unknown resistance $R$ using a given resistor of $15\,\Omega$. The galvanometer $(G)$ shows null deflection when tapping key is at $43\,cm$ mark from end $A$. If the end correction for end $A$ is $2\,cm$. then the determined value of $R$ will be__________ $\Omega$
    View Solution
  • 5
    Calculate the potential difference between, points $A$ and $B$ and current flowing in $10\,\Omega $ resistor in the part of network below
    View Solution
  • 6
    Two resistances equal at $0\,^oC$ with temperature coefficient of resistance $\alpha _1$ and $\alpha _2$ joined in series act as a single resistance in a circuit. The temperature coefficient of their single resistance will be
    View Solution
  • 7
    Two wires of the same material are given. The first wire is twice as long as the second and has twice the diameter of the second. The resistance of the first will be
    View Solution
  • 8
    In the given circuit, the terminal potential difference of the cell is:
    View Solution
  • 9
    By increasing the temperature, the specific resistance of a conductor and a semiconductor
    View Solution
  • 10
    In the circuit shown, the cell is ideal, with $emf$ $=$ $15$ $V$. Each resistance is of $3 $ $\Omega$ . The potential difference across the capacitor is.....$V$
    View Solution