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
  •  


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