## Tuesday, 20 September 2022

### ELECTROSTATIC POTENTIAL : MCQ ON ELECTROSTATIC POTENTIAL AND CAPACITANCE

Q1 By convention, the electrostatic potential of earth is taken to be

• Zero
• infinity
• 1
• None of these

• Zero

Q2 Physical significance of the line integral of electric field is that

• It signifies the work done in moving a unit charge from one point to another in the electric field.
• It gives idea about capacitance.
• It gives idea about magnetic susceptibility.
• It gives idea about electric permittivity

• It signifies the work done in moving a unit charge from one point to another in the electric field.
•

Q3 Dimensional formula of electric potential difference is

• M^{-1}L^{2}T^{-3}A^{-1}
• M^{1}L^{2}T^{-3}A^{-1}
• M^{1}L^{-2}T^{-3}A^{-1}
• M^{1}L^{2}T^{3}A^{-1}

• M^{1}L^{2}T^{-3}A^{-1}

Q4 The electric potential V at a point on the axis of an electric dipole depends on the distance “x” of the point from the dipole as:-

• v∝\frac{1}{x}
• v∝{x}
• v∝\frac{1}{x^{2}}
• v∝\frac{1}{x^{3}}

• v∝\frac{1}{x^{2}}

Q5 When capacitors are connected in parallel, the total capacitance is always  _________ the individual capacitance values.

• Greater than
• Less than
• Equal to
• Cannot be determined

• Greater than

Q6 When capacitors are connected in series, the total capacitance is always  _________ the individual capacitance values.

• Greater than
• Less than
• Equal to
• Cannot be determined

• Less than

Q7 Which type of energy  get stored inside  a capacitor?

• Potential energy
• Electric energy
• Chemical energy
• Kinetic energy

• Electric energy

Q8 Polarization is defined as the dipole moment

• per unit length
• per unit area
• per unit volume
• per unit time

• per unit volume

Q9 Work done to bring a unit positive charge un-accelerated from infinity to a point inside electric field is called

• Electric field
• Electric potential
• Capacitance
• Electric flux

• Electric potential

Q10 How many Joules are in 1 MeV?

• 1 MeV =1.6 x 10^{-13}J
• 1 MeV =1.6 x 10^{-19}J
• 1 MeV =1.6 x 10^{-12}J
• 1 MeV =1.6 x 10^{-15}J

• 1 MeV =1.6 x 10^{-13}J
•