Question : Assertion (A): Electrostatic experiments do not work well on humid days.
Reason (R): Accumulation of charges is reduced as humid air is more conducting than dry air.
A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
C) Assertion (A) is true but Reason (R) is false.
D) Assertion (A) is false and Reason (R) is also false.
Doubt by Ridhi
Solution :
It is correct that electrostatic experiments don't work well on humid days because the moisture in the air increases conductivity, which allows electric charges to leak away more easily. One might argue that water is a bad conductor of electricity until it is mixed with some ions. However, in humid air, water vapor mixes with salts, dust, and other impurities, which makes it conductive.
On humid days, water molecules from the air form a thin layer of moisture on surfaces. This conductive layer prevents the buildup of charges on the surface of objects by allowing them to leak into the atmosphere. Hence, the reason is also true: the accumulation of charges is reduced because humid air is more conductive than dry air.
Therefore, the correct option is:
(A) Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
