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. 0.6m. 6.25m. 5.25m. 0.5m. 0.6m. 6.25m. 5.25m. 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 In order to minimize loss due to hysteresis the magnetic material should have large coercivity. high resistivity. high hysteresis coefficient. small B-H loop area. large coercivity. high resistivity. high hysteresis coefficient. small B-H loop area. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field it has no sink or sources. magnetic flux lines are always closed. it is conservative. it is solenoidal. it has no sink or sources. magnetic flux lines are always closed. it is conservative. it is solenoidal. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true? Equal joule heating occurs in both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. An emf is induced in both coils. Equal joule heating occurs in both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. An emf is induced in both coils. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uz N. - 5 × 10-5 uy N. 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uz N. - 5 × 10-5 uy N. ANSWER DOWNLOAD EXAMIANS APP
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