Electromagnetic Field Theory Magnetostriction is a phenomenon of generation of magnetism in electrical conductors. change in physical dimensions of ferromagnetic materials during magnetism. change in permeability of ferromagnetic materials during magnetism. generation of electricity in ferromagnetic materials. generation of magnetism in electrical conductors. change in physical dimensions of ferromagnetic materials during magnetism. change in permeability of ferromagnetic materials during magnetism. generation of electricity in ferromagnetic materials. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be 14.40 V. 28.8 V. 1.4 V. 2.88 V. 14.40 V. 28.8 V. 1.4 V. 2.88 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now larger sphere will have greater potential. smaller sphere will have zero potential. larger sphere will have smalled potential. both of sphere will have same potential. larger sphere will have greater potential. smaller sphere will have zero potential. larger sphere will have smalled potential. both of sphere will have same potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will remain the same. increase. initially increase and then decrease. decrease. remain the same. increase. initially increase and then decrease. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 764 N. 76400 N. 76.4 N. 7640 N. 764 N. 76400 N. 76.4 N. 7640 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.477. 0.01. 0.447. 0.577. 0.477. 0.01. 0.447. 0.577. ANSWER DOWNLOAD EXAMIANS APP
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