Electromagnetic Field Theory The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of cross-sectional area of conductor. current flowing through the conductor. length of conductor. flux density. cross-sectional area of conductor. current flowing through the conductor. length of conductor. flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be 1.5 2.5 3.5 4.5 1.5 2.5 3.5 4.5 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is High standing wave ratio Low directional coupling Narrow bandwidth Poor directivity High standing wave ratio Low directional coupling Narrow bandwidth Poor directivity ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to rotating only. Due to transformer only. Due to both rotating and transformer action. Zero. Due to rotating only. Due to transformer only. Due to both rotating and transformer action. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s third law fourth law first law second law third law fourth law first law second law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. ANSWER DOWNLOAD EXAMIANS APP
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