When a wire o length `l(lltltr)` and ceoss sectional radius `r` is kept floating on surface of a liquid. Maximum radius of wire such that it may not sink. Is

A metalic wire of diameter d is lying horizontally o the surface of water. The maximum length of wire so that is may not sink will be

A metallic wire of diameter d is lying horizontally on the surface of water. The maximum length of wire so that it may not sink will be

A metallic wire of diameter “d” is lying horizontally on the surface of water. The maximum length of wire so that is may not sink will be

If breaking stress of a wire of length L and radius of cross-section r is P N//m^(2) , then breaking stress of wire of same material of length 2 L and radius of cross section (r/2) will be

A needle of length l and density rho will float on a liquid of surface tension sigma if its radius r is less than or equal to:

A needle of length l and density rho will float on a liquid of surface tension sigma if its radius r is less than or equal to:

A current i passes through a wire of length l , radius of cross-section r and resistivity rho . The rate of heat generation is

A current i passes through a wire of length l , radius of cross-section r and resistivity rho . The rate of heat generation is