A. similar charges repel each other
B. dissimilar charges attract each other
C. repulsion is the sure test of electrification
D. an electrically neutral body is repelled both positively and negatively charged bodies
Related Mcqs:
- select the correct statement?
A. the electric lines of force have no physical existence
B. they expand laterally and contract longitudinally
C. they do not cross each other and group together in dielectric
D. all the above statements are true - For making a capacitor, it is better to select a dielectric having___________?
A. low permittivity
B. high permittivity
C. permittivity same as that of air
D. permittivity slightly more than that of air - A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?
A. Paper capacitor
B. Ceramic capacitor
C. Electrolytic capacitor
D. Any-of the above - Which of the following statement is true __________?
A. The current in the discharging capacitor grows linearly
B. The current in the dicharging capacitor grows exponentially
C. The current in the discharging capacitor decays exponentially
D. The current in the discharging capacitor decreases constantly - “The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed”. The above statement is associated with____________?
A. Coulomb’s square law
B. Gauss’s law
C. Maxwell’s first law
D. Maxwell’s second law - “The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface”. The above statement is associated with_______?
A. Gauss’s law
B. Kirchhoff s law
C. Faraday’s law
D. Lenz’s law - In a capacitor the electric charge is stored in____________?
A. metal plates
B. dielectric
C. both (A) and (B)
D. none of the above - Dielectric strength of medium____________?
A. increases with rise in temperature
B. increases with moisture content
C. is same for all insulating materials
D. none of the above - Dielectric strength of a material depends on_____________?
A. moisture content
B. temperature
C. thickness
D. all of the above
E. none of the above - The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be____________?
A. 36 x 10fa
B. 36 x 107 N
C. 36 x 108 N
D. 36 x 109 N
