Direct measurement of conductivity of ionic solutions by Wheatstone bridge is not possible. Give reasons. Suggest a remedy to resolve it.
Understand the Problem
The question is asking about the limitations of using a Wheatstone bridge for directly measuring the conductivity of ionic solutions, and it is requesting a solution to overcome these limitations.
Answer
Polarization from DC affects measurements; use AC instead.
Direct measurement of conductivity of ionic solutions using a Wheatstone bridge is challenging due to polarization issues caused by direct current. A possible remedy is to use an alternating current (AC) to prevent polarization, resulting in more accurate measurements.
Answer for screen readers
Direct measurement of conductivity of ionic solutions using a Wheatstone bridge is challenging due to polarization issues caused by direct current. A possible remedy is to use an alternating current (AC) to prevent polarization, resulting in more accurate measurements.
More Information
When using a Wheatstone bridge with ionic solutions, direct current can cause the electrodes to polarize, affecting the reliability of the measurements. An alternating current maintains consistent readings by preventing this polarization, ensuring the ionic solution's properties remain unchanged during the measurement.
Tips
A common mistake is assuming direct current doesn’t affect the solution's composition. To avoid inaccurate readings, always use alternating current for such measurements.
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