Assertion: The tyres of aircraft's are slightly conducting.
Reason: If a conductor is connected to a ground, the extra charge induced on conductor will flow to ground.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If the assertion and reason both are false

Answer

B

Explanation

During take off and landing of the aircraft, the friction between the runway and the tyres may cause electrification of tyres. Because of conducting nature of tyre, the charge so collected will directly go to the earth and electrical sparking is avoided.