Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases remains constant reaches zero increases decreases remains constant reaches zero increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 2,400 At 24 At 240 At 2.4 At 2,400 At 24 At 240 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Electromagnets Non-magnetic substances Permanent magnets Transformers Electromagnets Non-magnetic substances Permanent magnets Transformers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a solenoid is activated, the force that moves the plunger is varying voltage a permanent magnetic field an electromagnetic field a steady current varying voltage a permanent magnetic field an electromagnetic field a steady current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The bar magnet has Both dipole and monopole moment Dipole moment Monopole moment None of the listed here Both dipole and monopole moment Dipole moment Monopole moment None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has low permeability it has high specific gravity it has high permeability it corrodes easily it has low permeability it has high specific gravity it has high permeability it corrodes easily ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS