Electromagnetic Field Theory The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is 1.15 J. 0.5 J. 0.015 J. 0.15 J. 1.15 J. 0.5 J. 0.015 J. 0.15 J. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The ability of charged bodies to exert force on one another is attributed to the existence of protons. electric field. neutrons. electrons. protons. electric field. neutrons. electrons. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by ab Bo cosω t. Bo ω sinω t. Zero. abω Bo sinω t. ab Bo cosω t. Bo ω sinω t. Zero. abω Bo sinω t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field intensity (E) at ant point in an electric field is equal to (potential gradient)1/2. (potential gradient)2. potential gradient. (potential gradient)1/3. (potential gradient)1/2. (potential gradient)2. potential gradient. (potential gradient)1/3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An infinite non conducting sheet of charge has σ of 10-7 c/m3. Equipotential surface for a potential of 10 volts is. 1.32 mm. 0. 1.77 mm. 0.88 mm. 1.32 mm. 0. 1.77 mm. 0.88 mm. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The divergence of a vector is a scalar, while the curl of a vector is another Scalar None of these Unit vector Vector Scalar None of these Unit vector Vector ANSWER DOWNLOAD EXAMIANS APP
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