Electromagnetic Field Theory For an inductor, current is proportional to both (A) and (B). voltage across the inductor. none of them. magnetic field. both (A) and (B). voltage across the inductor. none of them. magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 900 V. 1800 V. 200 V. 0 V. 900 V. 1800 V. 200 V. 0 V. 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). QR. QD. QR2/d. Q√(R2 + d2). QR. QD. QR2/d. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to Both of A and B. A monopole. A quardra pole. A dipole. Both of A and B. A monopole. A quardra pole. A dipole. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of the induced emf in a conductor depends upon on the rate of change of flux linkage. amount of flux linkage. flux density of the magnetic field. amount of flux cut. rate of change of flux linkage. amount of flux linkage. flux density of the magnetic field. amount of flux cut. 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 both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. Equal joule heating occurs in both coils. An emf is induced in both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. ANSWER DOWNLOAD EXAMIANS APP
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