Electromagnetic Field Theory A medium is said to be isotropic when ∈ = μ. ∈ = μσ. ∈ is zero. ∈ is a scalar constant. ∈ = μ. ∈ = μσ. ∈ is zero. ∈ is a scalar constant. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is 2 × 108. 2 × 10-6. 2 × 10-8. 2 × 106. 2 × 108. 2 × 10-6. 2 × 10-8. 2 × 106. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have large coercivity. small B-H loop area. high hysteresis coefficient. high resistivity. large coercivity. small B-H loop area. high hysteresis coefficient. high resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exits between the conductor and the ground. The maximum electric stress occur at Midway between the conductor and ground. The lower surface of the conductor. The ground surface. The upper surface of the conductor. Midway between the conductor and ground. The lower surface of the conductor. The ground surface. The upper surface of the conductor. 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 both rotating and transformer action. Zero. Due to transformer only. Due to rotating only. Due to both rotating and transformer action. Zero. Due to transformer only. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be 1.4 V. 2.88 V. 14.40 V. 28.8 V. 1.4 V. 2.88 V. 14.40 V. 28.8 V. ANSWER DOWNLOAD EXAMIANS APP
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