Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. J = E / σ. R = ρ × ( l / A). J = σE. V = IR. J = E / σ. R = ρ × ( l / A). J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is 40π C. 5 C. 10 C. None of above. 40π C. 5 C. 10 C. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A wire carrying current is bent in the form of a circular loop. Then the magnetic field around each portion of the wire will be perpendicular to the circumference of the wire. parallel to the plane of the wire. none of above. parallel to half portion and perpendicular for the other half. perpendicular to the circumference of the wire. parallel to the plane of the wire. none of above. parallel to half portion and perpendicular for the other half. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory ________ at a point is defined as the force experienced per unit positive charge at a point placed in the electric field. Electric flux. None of these Electric intensity. Magnetic flux density. Electric flux. None of these Electric intensity. Magnetic flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V. 0.5T. 2.5T. 10T. 5T. 0.5T. 2.5T. 10T. 5T. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Actual power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Apparent power of the circuit is zero. Reactive power of the circuit is zero. Actual power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Apparent power of the circuit is zero. Reactive power of the circuit is zero. ANSWER DOWNLOAD EXAMIANS APP
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