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Electromagnetic Field Theory
A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is
80π coulombs.
10π coulombs.
40π coulombs.
none of these.
80π coulombs.
10π coulombs.
40π coulombs.
none of these.
Answer
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Related Question
Electromagnetic Field Theory
If the resistance of a conductor does not vary in accordance with the Ohms law it is known as
bad conductor.
non - linear conductor.
non - conductor.
reverse conductor.
bad conductor.
non - linear conductor.
non - conductor.
reverse conductor.
Answer
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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
Zero.
Due to both rotating and transformer action.
Due to transformer only.
Due to rotating only.
Zero.
Due to both rotating and transformer action.
Due to transformer only.
Due to rotating only.
Answer
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Electromagnetic Field Theory
A square corner reflector is used in
Point to point communication
All of these
Tv broadcast
Radio astronomy
Point to point communication
All of these
Tv broadcast
Radio astronomy
Answer
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Electromagnetic Field Theory
MUF is depend upon
11 year sun spot cycle
Received frequency by receiver
Height of ionospheric layer
Electron density of the ionospheric layer
11 year sun spot cycle
Received frequency by receiver
Height of ionospheric layer
Electron density of the ionospheric layer
Answer
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Electromagnetic Field Theory
The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is
40 nj.
20 nj.
100 nj.
60 nj.
40 nj.
20 nj.
100 nj.
60 nj.
Answer
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