Electromagnetic Field Theory Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is 1 V. 2 V. √ 2 V. Zero. 1 V. 2 V. √ 2 V. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is 0.015 joule. 0.15 joule. 0.015 joule. 1.15 joule. 0.015 joule. 0.15 joule. 0.015 joule. 1.15 joule. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be alternating. none of these. pulsating. steady. alternating. none of these. pulsating. steady. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A vector field A = p In is given in Cartesian coordinates. In cylindrical coordinates it will be represented as A = cosφ Ir - sinφ Ir. A = sinφ Ir. A = cosφ Ir. A = cosφ Ir + sinφ Iφ. A = cosφ Ir - sinφ Ir. A = sinφ Ir. A = cosφ Ir. A = cosφ Ir + sinφ Iφ. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.447. 0.01. 0.577. 0.477. 0.447. 0.01. 0.577. 0.477. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor. 18.08 A. 2.28 A. 9.04 A. 4.56 A. 18.08 A. 2.28 A. 9.04 A. 4.56 A. ANSWER DOWNLOAD EXAMIANS APP
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