Materials and Components Which inductor is linear? Iron alloy cored Cast iron cored Air cored Sheet steel cored Iron alloy cored Cast iron cored Air cored Sheet steel cored 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, 2 and 3 2 and 3 only 1 and 2 only 1 and 3 only 1, 2 and 3 2 and 3 only 1 and 2 only 1 and 3 only ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The materials which become polarized on the application of mechanical stress are called piezoelectric. False True False True 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 low melting point High thermal conductivity and high melting point Low thermal conductivity and high melting point Low thermal conductivity and low melting pointL High thermal conductivity and low melting point High thermal conductivity and high melting point Low thermal conductivity and high melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with AC DC None of these Both AC and DC AC DC None of these Both AC and DC ANSWER DOWNLOAD EXAMIANS APP
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