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. 0.6m. 5.25m. 0.5m. 6.25m. 0.6m. 5.25m. 0.5m. 6.25m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 3.75 N. 15 N. 20 N. 7.5 N. 3.75 N. 15 N. 20 N. 7.5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as R = ρ × ( l / A). J = E / σ. V = IR. J = σE. R = ρ × ( l / A). J = E / σ. V = IR. J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes - 100 μ v/m. 100 μ v/m. 0. None of above. - 100 μ v/m. 100 μ v/m. 0. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? The potential difference between two points is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The work done in a closed path inside the fields is zero. The potential difference between two points is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The work done in a closed path inside the fields is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 76400 N. 764 N. 7640 N. 76.4 N. 76400 N. 764 N. 7640 N. 76.4 N. ANSWER DOWNLOAD EXAMIANS APP
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