Assertion: The lightening conductor at the top of high building has sharp pointed ends.
Reason: The surface density of charge at sharp points is very high resulting in setting up of electric wind.

Assertion: The lightening conductor at the top of a high building has sharp ends. Reason : The surface density of charge at sharp points is very high. Resulting in setting up of electric wind.

Statement I: The top of a lightning conductor of a high building has sharp pointed ends. Statement II: The surface density of charge at sharp points is very high, resulting in setting up of an electric wind.

___________ has a very high melting point.

Give scientific reasons: The melting point of the filament of a bulb is very high.

Select the correct answer :Diamond has a very high/low melting point.

(A ): Sharper is the curvature of spot on a charged body lesser will be the surface density of charge at that point. (R ): Electric field is zero inside a charged conductor.

(A ): Sharper is the curvature of spot on a charged body lesser will be the surface density of charge at that point. (R ): Electric field is zero inside a charged conductor.