Physical World

Ampere hour is clearly a unit of current time i.e. I t i.e. i.e. q

Area = 6.01 12 = 72.12 As per significant figure rules the answer is 72 because the least significant figures in the case of sides is 2

The velocity of light in vacuum is a dimensional constant

Resistance, For

The potential energy of an electric dipole in a uniform electric field is given by: where: - is the dipole moment, - is the electric field, - is the angle between and , - is the magnitude of the dipole moment. From this formula: 1. When the angle (i.e., the dipole is aligned with the electric field), the potential energy is minimum, and the work done by the electric field is: 2. When the angle (i.e., the dipole is opposite to the electric field), the potential energy is maximum negative, and the work done by the electric field is: 3. When the angle (i.e., the dipole is perpendicular to the electric field), the potential energy is zero, and no work is done by the electric field. Thus, the correct matches are: