Electrostatics questions with answers
106 multiple-choice questions. Open any question for its answer and explanation.
- The total deficiency or excess of electrons in a body is known as
- is that property of a capacitor which delays any change of voltage across it.
- Electric intensity at any point in an electric field is equal to the at that point.
- Dielectric strength of medium
- A capacitor consists of
- In the case of a lossy capacitor, its series equivalent resistance value will be
- In a capacitive circuit
- Which of the following capacitors will have the least variation?
- The electric field at a point situated at a distance d from straight charged conductor is
- The dielectric constant (relative permittivity) of glass is given by
- What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?
- Permittivity is expressed in
- A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance ?
- The units of capacitance are
- The relative permittivity of free space is given by
- Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the
- The dissipation factor of a good dielectric is of the order of
- In order to remove static electricity from machinery
- The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value,
- This mention statement is associated with "The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface".
- For a good 0.05 uF capacitor ohmmeter reading should
- If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is
- The ability of charged bodies to exert force on 6ne another is attributed to the existence of
- What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ?
- Which of the following capacitors has relatively shorter shelf life ?