Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 30 joules. 12 joules. 15 joules. 24 joules. 30 joules. 12 joules. 15 joules. 24 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be BL2I. zero. BIL. BI2L. BL2I. zero. BIL. BI2L. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is constant and field is varying then emf will be induced. This principle is called static induced emf. None of these dynamically induced emf. virtually induced emf. static induced emf. None of these dynamically induced emf. virtually induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is varying and field is fixed then emf will be induced. This principle is called static induced emf. None of these both A and B. dynamically induced emf. static induced emf. None of these both A and B. dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Unity. Infinity. Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing? 20 mH. 0 mH. 5 mH. 10 mH. 20 mH. 0 mH. 5 mH. 10 mH. ANSWER DOWNLOAD EXAMIANS APP
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