The inverse of capacitance is called
Q. The inverse of capacitance is called reluctance conductance susceptance elastance Answer: elastance
Electrostatics MCQs
The dielectric constant (relative permittivity) of glass is given by
Q. The dielectric constant (relative permittivity) of glass is given by 0.1 to 0.4 0.5 to 1.0 2.0 to 4.0 5 to 100 Answer: 5 to 100
The dielectric constant (relative permittivity) of glass is given by Read More »
When a dielectric is placed in an electric field the field strength
Q. When a dielectric is placed in an electric field the field strength decreases increases reduces to zero remain unchanged Answer: decreases
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capacitors are mainly used for radio frequency tuning
Q. capacitors are mainly used for radio frequency tuning. Paper Air Mica Electrolytic Answer: Air
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“The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface”
Q. “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 Gauss’s law Kirchhoff s law Faraday’s law Lenz’s law Answer: Gauss’s law
The units of volume charge density are
Q. The units of volume charge density are Coulomb/meter Coulomb/meter Coulomb/meter Coulomb/meter Answer: Coulomb/meter
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be
Q. The force between two charges is 120 N. If the distance between the charges is doubled, the force will be 60 N 30 N 40 N 15 N Answer: 30 N
If 5 J of work is required to shift 10 C charge from one place to another then potential difference is
Q. If 5 J of work is required to shift 10 C charge from one place to another then potential difference is 0.5 V 2 V 5 V 10 V Answer: 0.5 V
The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be
Q. The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be 36 x 10fa 36 x 107 N 36 x 108 N 36 x 109 N Answer: 36 x 109 N
For closer tolerances which of the following capacitors is usually preferred ?
Q. For closer tolerances which of the following capacitors is usually preferred ? Paper capacitor Mica capacitor Ceramic disc capacitor None of the above Answer: Mica capacitor
For closer tolerances which of the following capacitors is usually preferred ? Read More »