Electromagnetic Field Theory Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is 4 A/m. 1 A/m. 2 A/m. 8 A/m. 4 A/m. 1 A/m. 2 A/m. 8 A/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by 4t3. 12t3. 24t. 12t. 4t3. 12t3. 24t. 12t. 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) Q√(R2 + d2). QD. QR2/d. QR. Q√(R2 + d2). QD. QR2/d. QR. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Hysteresis. Retentivity. Saturation magnetism. Coercivity. Hysteresis. Retentivity. Saturation magnetism. Coercivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon The weight of the conductor None of these The value of current The direction of the conductor The weight of the conductor None of these The value of current The direction of the conductor ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If an electric current carrying coil is placed in a uniform magnetic field in the direction of magnetic induction, then the net force is finite but torque is zero. the net force is zero but torque is finite. the net force and torque on the coil are both zero. the net force and torque are both finite. the net force is finite but torque is zero. the net force is zero but torque is finite. the net force and torque on the coil are both zero. the net force and torque are both finite. ANSWER DOWNLOAD EXAMIANS APP
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