Electromagnetic Field Theory MUF is highest in periods of greatest sunspot activity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 15 N. 3.75 N. 7.5 N. 20 N. 15 N. 3.75 N. 7.5 N. 20 N. 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? Joule heating does not occur in each of the coils. An emf is induced in split coil. Equal joule heating occurs in both coils. An emf is induced in both coils. Joule heating does not occur in each of the coils. An emf is induced in split coil. Equal joule heating occurs in both coils. An emf is induced in both coils. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which antenna is a wideband antenna? Marconi antenna Hertz antenna None of these Folded dipole Marconi antenna Hertz antenna None of these Folded dipole ANSWER DOWNLOAD EXAMIANS APP
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 initially increase and then decrease. increase. remain the same. decrease. initially increase and then decrease. increase. remain the same. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as coulomb. micro - coulomb. milli - coulomb. pico - coulomb. coulomb. micro - coulomb. milli - coulomb. pico - coulomb. ANSWER DOWNLOAD EXAMIANS APP
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