Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 3 db 2.15 db 4.15 db 6 db 3 db 2.15 db 4.15 db 6 db ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 150. 450. 600. 300. 150. 450. 600. 300. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of length of conductor. cross-sectional area of conductor. current flowing through the conductor. flux density. length of conductor. cross-sectional area of conductor. current flowing through the conductor. flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by 12t3. 4t3. 24t. 12t. 12t3. 4t3. 24t. 12t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position 5 × 10-5 uz N. - 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uy N. 5 × 10-5 uz N. - 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uy N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called dynamically induced emf. virtually induced emf. static induced emf. none of these dynamically induced emf. virtually induced emf. static induced emf. none of these ANSWER DOWNLOAD EXAMIANS APP
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