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Measurement of the coonductivity of elec...

Measurement of the coonductivity of electrolytic solutions is done with the helpof Wheatstone bridge using a/an

A

battery

B

induction coil

C

conductivity cell

D

both (2) and (3)

Text Solution

Verified by Experts

The correct Answer is:
D
Induction coil, an alternating current `(A)` source of power is used to nullify the electrolysis of the electrolyte while conductivity cell is used to connet the electrolytic solution to the bridge like a matallic wire or other solid conductor. Galvanometer is replaced by an earphone bacause when `AC` source is used, ordinary galvanometer fails to detect the null point.
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Knowledge Check

  • Wheatstone bridge can be used

    A
    to compare two unknown resistances.
    B
    to measure small strains produced in hardmetal
    C
    as the working principle of meterbridge
    D
    all the above

  • For measuring the conductivity of an electrolyte its solution should be prepared in

    A
    Tap water
    B
    Distilled water
    C
    Conductivity water
    D
    Polywater.

  • Assertion (A) : Electrical work done in one second is equal to electrical potential multiplied by total charge passed. Reason (R) : Electrical resistance can be measured with the help of Wheatstone bridge.

    A
    Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).
    B
    Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A)
    C
    Assertion (A) is correct, but Reason (R) is incorrect statement.
    D
    Assertion (A) is incorrect, but Reason (R) is correct statement.