Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. False True False True 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 2 only 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The material may become an insulator The superconducting property is not affected The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property may be destroyed The material may become an insulator The superconducting property is not affected The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property may be destroyed ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is linear? Air cored Iron alloy cored Cast iron cored Sheet steel cored Air cored Iron alloy cored Cast iron cored Sheet steel cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess 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 Low thermal conductivity and low melting pointL High thermal conductivity and low melting point ANSWER DOWNLOAD EXAMIANS APP
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