Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 12 joules. 24 joules. 30 joules. 15 joules. 12 joules. 24 joules. 30 joules. 15 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = 3b a = b a = b/4 a = 2b a = 3b a = b a = b/4 a = 2b ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is Infinity. Zero. 4.32. 2.16. Infinity. Zero. 4.32. 2.16. 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 turns ratio of the transformer is also two. transformer is an ideal transformer. none of these. it is a perfect transformer. turns ratio of the transformer is also two. transformer is an ideal transformer. none of these. it is a perfect transformer. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is 12 Ix + 8 Iy + Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix - 8 Iy - Iz V/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m 8.4 mm. 2.4 mm. 4 mm. 10 mm. 8.4 mm. 2.4 mm. 4 mm. 10 mm. ANSWER DOWNLOAD EXAMIANS APP
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