Question

6.
Ramesh observed the deflection in the magnetic compass in the following circuit. What does the
deflection indicate? At the same time Ravi could not find any deflection in the magnetic compass in the
same circuit, with another liquid. Give reason for the above in each case. Give two examples for each of
the above liquids.
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Answer 1

Explanation:

The deflection in compass showed presence of electric current. Thus, liquid used must be a good conductor of electricity like HCl or H2SO4.

In the second case, the compass didn't show any deflection thus, no electric current was flowing. Therefore, the liquid used must be a poor conductor of electricity like distilled water or salt solution.