Electromagnetic Field Theory A medium is said to be isotropic when ∈ = μσ. ∈ is a scalar constant. ∈ = μ. ∈ is zero. ∈ = μσ. ∈ is a scalar constant. ∈ = μ. ∈ is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For DC voltage an inductor is virtually a short circuit. open circuit. depends on magnitude of voltage. depends on polarity. short circuit. open circuit. depends on magnitude of voltage. depends on polarity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity equal to that of disc and in the opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. less than that of disc but in opposite direction. equal to that of disc and in the opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. less than that of disc but in opposite direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Skin depth is proportional to Permeability. 1/√σ. √(σ). Frequency. Permeability. 1/√σ. √(σ). Frequency. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Cork Screw rule is used to find direction of magnetic field. direction of current. direction of electric field. direction of emf. direction of magnetic field. direction of current. direction of electric field. direction of emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A vector field A = p In is given in Cartesian coordinates. In cylindrical coordinates it will be represented as A = cosφ Ir - sinφ Ir. A = cosφ Ir + sinφ Iφ. A = cosφ Ir. A = sinφ Ir. A = cosφ Ir - sinφ Ir. A = cosφ Ir + sinφ Iφ. A = cosφ Ir. A = sinφ Ir. ANSWER DOWNLOAD EXAMIANS APP
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