Electromagnetic Field Theory The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is 2. 4. 3. 8. 2. 4. 3. 8. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is none of above. zero. attractive. repulsive. none of above. zero. attractive. repulsive. 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 pico - coulomb. coulomb. milli - coulomb. micro - coulomb. pico - coulomb. coulomb. milli - coulomb. micro - coulomb. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere QR/(4π εo r3). Q/(4 π εo r3). 3 Qr/(4 π εo R3). Qr/(4 π εo R3). QR/(4π εo r3). Q/(4 π εo r3). 3 Qr/(4 π εo R3). Qr/(4 π εo R3). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main purpose of choke is to block low frequencies. none of above. to pass high frequencies. to pass low frequencies. to block low frequencies. none of above. to pass high frequencies. to pass low frequencies. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. ANSWER DOWNLOAD EXAMIANS APP
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