The Answer is B.)Convection is a more efficient method of heat transfer.
Explanation:
In fluids, such as water and air, convection is a much more efficient method of heat transfer than conduction. Although conduction was at work in both cases, it transferred much less heat than convection.
The magnitude of the electric field between the membrane = surface density / permittivity of free space = 10 ⁻⁵C/ m² / (8.85 × 10⁻¹²N⁻¹m⁻²C²) = 1.13 × 10⁶ N/C approx 1 × 10⁶ N/C
