Electromagnetic Field Theory Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V. 0.5m. 5.25m. 6.25m. 0.6m. 0.5m. 5.25m. 6.25m. 0.6m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following represents ohms law V = RI I = GV All of these J = σE V = RI I = GV All of these J = σE 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 Bo ω sinω t. ab Bo cosω t. abω Bo sinω t. Zero. Bo ω sinω t. ab Bo cosω t. abω Bo sinω t. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to Distance of the point from the antenna Wave frequency Current of the antenna Antenna height Distance of the point from the antenna Wave frequency Current of the antenna Antenna height ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing? 20 mH. 0 mH. 10 mH. 5 mH. 20 mH. 0 mH. 10 mH. 5 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is varying and field is fixed then emf will be induced. This principle is called both A and B. None of these dynamically induced emf. static induced emf. both A and B. None of these dynamically induced emf. static induced emf. ANSWER DOWNLOAD EXAMIANS APP
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