Electromagnetic Field Theory Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be 5. 50. 20. 10. 5. 50. 20. 10. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor when connected across 220 V, 50 Hz supply consumes 100 W. From the above statement it can be concluded that the inductor is non linear. the inductor is made of thin wire. the inductor has ferrite core. the above statement is false. the inductor is non linear. the inductor is made of thin wire. the inductor has ferrite core. the above statement is false. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true? Equal joule heating occurs in both coils. An emf is induced in both coils. Joule heating does not occur in each of the coils. An emf is induced in split coil. Equal joule heating occurs in both coils. An emf is induced in both coils. Joule heating does not occur in each of the coils. An emf is induced in split coil. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as J = E / σ. J = σE. V = IR. R = ρ × ( l / A). J = E / σ. J = σE. V = IR. R = ρ × ( l / A). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory RF inductor are characterized by high current rating and low resistance. low current rating and high resistance. high current rating and high resistance. low current rating and low resistance. high current rating and low resistance. low current rating and high resistance. high current rating and high resistance. low current rating and low resistance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic flux density emerging out of a closed surface is zero. depends on magnetic movements inside the closed surface. depends on magnetic movements outside the closed surface infinite. zero. depends on magnetic movements inside the closed surface. depends on magnetic movements outside the closed surface infinite. ANSWER DOWNLOAD EXAMIANS APP
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