Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 150 At 200 At 100 At 300 At 150 At 200 At 100 At 300 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as susceptance residual magnetism permeance reluctance susceptance residual magnetism permeance reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Non-magnetic substances Transformers Electromagnets Permanent magnets Non-magnetic substances Transformers Electromagnets Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a solenoid is activated, the force that moves the plunger is an electromagnetic field varying voltage a steady current a permanent magnetic field an electromagnetic field varying voltage a steady current a permanent magnetic field ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect both of the listed here None of these resistance of conductor reluctance of conductor both of the listed here None of these resistance of conductor reluctance of conductor ANSWER DOWNLOAD EXAMIANS APP
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 120 mA 1.7 mA 12 mA 16 mA 120 mA 1.7 mA ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS