Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n. k = 0. n = - k. n = K. n × k = 0. n. k = 0. n = - k. n = K. n × k = 0. 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 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. the inductor is non linear. the inductor is made of thin wire. the inductor has ferrite core. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now both of sphere will have same potential. smaller sphere will have zero potential. larger sphere will have smalled potential. larger sphere will have greater potential. both of sphere will have same potential. smaller sphere will have zero potential. larger sphere will have smalled potential. larger sphere will have greater potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called static induced emf. virtually induced emf. dynamically induced emf. none of these static induced emf. virtually induced emf. dynamically induced emf. none of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then it is a perfect transformer. transformer is an ideal transformer. none of these. turns ratio of the transformer is also two. it is a perfect transformer. transformer is an ideal transformer. none of these. turns ratio of the transformer is also two. 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 parallel to half portion and perpendicular for the other half. parallel to the plane of the wire. perpendicular to the circumference of the wire. none of above. parallel to half portion and perpendicular for the other half. parallel to the plane of the wire. perpendicular to the circumference of the wire. none of above. ANSWER DOWNLOAD EXAMIANS APP
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