Electromagnetic Field Theory The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is 3.2 H. 3.2 µH. 32 mH. 3.2 mH. 3.2 H. 3.2 µH. 32 mH. 3.2 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be 4 A / s. 64 A / s. 32 A / s. 16 A / s. 4 A / s. 64 A / s. 32 A / s. 16 A / s. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Kirchhoff’s current law is implict in expression Divergence of D = ρv. Divergence of B = 0. Surface integral of (j.ds) = 0. Curl of H = J + (δ D)/(δ t). Divergence of D = ρv. Divergence of B = 0. Surface integral of (j.ds) = 0. Curl of H = J + (δ D)/(δ t). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = 2b a = 3b a = b/4 a = b a = 2b a = 3b a = b/4 a = b ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is 0. – 2 ux. 2 ux. – uy. 0. – 2 ux. 2 ux. – uy. ANSWER DOWNLOAD EXAMIANS APP
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