What is the advantage of using thick metallic strips to join wires in a potentiometer?

  • A
    To increase the total resistance of the circuit.
  • B
    To provide mechanical strength to the potentiometer.
  • C
    To minimize the resistance of the connections and ensure negligible voltage drop across the joints.
  • D
    To make the potentiometer look more compact.

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Similar Questions

$A$ potentiometer has a wire of length $4 \ m$ and resistance $10 \ \Omega$. The potentiometer is connected to a cell of $2 \ V$. The potential drop per unit length is ........... $V/m$.

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The resistivity of a potentiometer wire is $40 \times 10^{-8} \, \Omega \cdot m$ and its area of cross-section is $8 \times 10^{-6} \, m^2$. If $0.2 \, A$ current is flowing through the wire,the potential gradient will be:

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