Materials and Components The merger of hole and free electron is called Thermal energy Recombination Free electrons Covalent bonding Thermal energy Recombination Free electrons Covalent bonding ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The most important set of specifications of transformer oil include viscosity and flash point flash point and viscosity dielectric strength and viscosity dielectric strength and flash point viscosity and flash point flash point and viscosity dielectric strength and viscosity dielectric strength and flash point ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances. 1 and 3 only 2 and 3 only 1, 2 and 3 1 and 2 only 1 and 3 only 2 and 3 only 1, 2 and 3 1 and 2 only ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having Permittivity which is neither high nor low High permittivity Low permittivity Permittivity same as that of air Permittivity which is neither high nor low High permittivity Low permittivity Permittivity same as that of air ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess Low thermal conductivity and low melting pointL High thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and high melting point Low thermal conductivity and low melting pointL High thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and high melting point ANSWER DOWNLOAD EXAMIANS APP
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