Electromagnetic Field Theory The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is 60 nj. 100 nj. 40 nj. 20 nj. 60 nj. 100 nj. 40 nj. 20 nj. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as J = σE. J = E / σ. R = ρ × ( l / A). V = IR. J = σE. J = E / σ. R = ρ × ( l / A). V = IR. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) QR2/d. Q√(R2 + d2). QD. QR. QR2/d. Q√(R2 + d2). QD. QR. ANSWER DOWNLOAD EXAMIANS APP
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 0.015 J. 0.15 J. 0.5 J. 1.15 J. 0.015 J. 0.15 J. 0.5 J. 1.15 J. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The right hand rule for determining the direction of the induced EMF was introduced by Fleming Maxwell Lenz Faraday Fleming Maxwell Lenz Faraday ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is 4. 8. 2. 3. 4. 8. 2. 3. ANSWER DOWNLOAD EXAMIANS APP
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