Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. J = σE. R = ρ × ( l / A). J = E / σ. V = IR. J = σE. R = ρ × ( l / A). J = E / σ. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A sphere of 20 cm radius contains electrical charge of density 2/(r sinθ) c/m3. What is the total charge contained within the sphere? 0.335/sinθ c. 0.335 C. None of above. 0. 0.335/sinθ c. 0.335 C. None of above. 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as series aiding inductance. mutual inductance. capacitance. self inductance. series aiding inductance. mutual inductance. capacitance. self inductance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is 2 N. 2.5 N. 3.75 N. 5 N. 2 N. 2.5 N. 3.75 N. 5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Skin depth is proportional to 1/√σ. Frequency. Permeability. √(σ). 1/√σ. Frequency. Permeability. √(σ). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) QD. QR2/d. Q√(R2 + d2). QR. QD. QR2/d. Q√(R2 + d2). QR. ANSWER DOWNLOAD EXAMIANS APP
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