Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will decrease. remain the same. initially increase and then decrease. increase. decrease. remain the same. initially increase and then decrease. increase. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. – 72 πuz v/m. – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. – 72 πuz v/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be 28.8 V. 1.4 V. 2.88 V. 14.40 V. 28.8 V. 1.4 V. 2.88 V. 14.40 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 300. 150. 450. 600. 300. 150. 450. 600. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If a and b are the dimensions of waveguide then a = 2b a = b a = 3b a = b/4 a = 2b a = b a = 3b a = b/4 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is constant and field is varying then emf will be induced. This principle is called dynamically induced emf. static induced emf. None of these virtually induced emf. dynamically induced emf. static induced emf. None of these virtually induced emf. ANSWER DOWNLOAD EXAMIANS APP
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