Electromagnetic Field Theory The operation of electric generators and motors depend on the intraction between magnetic field and Electric current. Copper conductors. Commutator. Electric fields. Electric current. Copper conductors. Commutator. Electric fields. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be 100 V. 75 V. 50 V. 25 V. 100 V. 75 V. 50 V. 25 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. J = E / σ. J = σE. R = ρ × ( l / A). V = IR. J = E / σ. J = σE. R = ρ × ( l / A). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A medium is said to be isotropic when ∈ is a scalar constant. ∈ = μ. ∈ is zero. ∈ = μσ. ∈ is a scalar constant. ∈ = μ. ∈ is zero. ∈ = μσ. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be 100 mH. 50 mH. 150 mH. 200 mH. 100 mH. 50 mH. 150 mH. 200 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor. 2.28 A. 4.56 A. 9.04 A. 18.08 A. 2.28 A. 4.56 A. 9.04 A. 18.08 A. ANSWER DOWNLOAD EXAMIANS APP
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