Magnetism and Electromagnetism The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is 12 mA 16 mA 1.7 mA 120 mA 12 mA 16 mA 1.7 mA 120 mA ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A keeper is used to Restore lost flux Amplify flux Change the direction of magnetic lines Provide a closed path for flux Restore lost flux Amplify flux Change the direction of magnetic lines Provide a closed path for flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 24 At 2.4 At 2,400 At 240 At 24 At 2.4 At 2,400 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density increases Flux density decreases Core area increases Core length increases Flux density increases Flux density decreases Core area increases Core length increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is None of the listed here Hennry/meter Hennry Its dimensionless None of the listed here Hennry/meter Hennry Its dimensionless ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Unit for quantity of electricity is Joule Ampere-hour Ampere Coulomb Joule Ampere-hour Ampere Coulomb ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS