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 16 mA 120 mA 1.7 mA 12 mA 16 mA 120 mA 1.7 mA 12 mA ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Causes no change in flux density Increases the flux density Decreases the flux density Reverses the flux lines Causes no change in flux density Increases the flux density Decreases the flux density Reverses the flux lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Out of the following statements, concerning an electric field, which statement is not true? Unit field intensity in the exertion of a force of one newton on a charge of one coulomb The electric intensity is a vector quantity An electric field is defined as a point in space at which an electric charge would experience a force The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point Unit field intensity in the exertion of a force of one newton on a charge of one coulomb The electric intensity is a vector quantity An electric field is defined as a point in space at which an electric charge would experience a force The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it? 300 At 18.75 At 30 At 187 At 300 At 18.75 At 30 At 187 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Fleming's left hand rule is used to find Direction of magnetic field due to current carrying conductor Direction of force on a current carrying conductor in a magnetic field Direction of flux in a solenoid Polarity of a magnetic pole Direction of magnetic field due to current carrying conductor Direction of force on a current carrying conductor in a magnetic field Direction of flux in a solenoid Polarity of a magnetic pole ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following type of materials are not very important for engineering applications? Ferro magnetic material None of the listed here Diamagnetic material Paramagnetic material Ferro magnetic material None of the listed here Diamagnetic material Paramagnetic material ANSWER DOWNLOAD EXAMIANS APP
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