Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 1.5 mA. 2 mA. 2.5 mA. 1mA. 1.5 mA. 2 mA. 2.5 mA. 1mA. 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. Zero. Bo ω sinω t. abω Bo sinω t. ab Bo cosω t. Zero. Bo ω sinω t. abω Bo sinω t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is 1 A/m. 8 A/m. 4 A/m. 2 A/m. 1 A/m. 8 A/m. 4 A/m. 2 A/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field it is solenoidal. magnetic flux lines are always closed. it is conservative. it has no sink or sources. it is solenoidal. magnetic flux lines are always closed. it is conservative. it has no sink or sources. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Parabolic and lens antenna used at High frequency Medium frequency Microwave frequency Low frequency High frequency Medium frequency Microwave frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Inside a hollow conducting sphere electric field is a non zero constant. electric field is zero. electric field changes with magnitude of the charge given to the conductor. electric field changes with distance from the center of the sphere. electric field is a non zero constant. electric field is zero. electric field changes with magnitude of the charge given to the conductor. electric field changes with distance from the center of the sphere. ANSWER DOWNLOAD EXAMIANS APP
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