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Electromagnetic Field Theory
According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is
inversely proportional to the square of the distance between them.
inversely proportional to the distance between them.
directly proportional to the square of the distance between them.
directly proportional to the distance between them.
inversely proportional to the square of the distance between them.
inversely proportional to the distance between them.
directly proportional to the square of the distance between them.
directly proportional to the distance between them.
Answer
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Related Question
Electromagnetic Field Theory
The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is
0.5 J.
0.015 J.
1.15 J.
0.15 J.
0.5 J.
0.015 J.
1.15 J.
0.15 J.
Answer
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Electromagnetic Field Theory
The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of
cross-sectional area of conductor.
length of conductor.
current flowing through the conductor.
flux density.
cross-sectional area of conductor.
length of conductor.
current flowing through the conductor.
flux density.
Answer
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Electromagnetic Field Theory
It was suggested by _____________ that the electric field should be imagined to be divided into tubes of force containing a fixed number of line of force
Faraday.
all of above.
Kelvin.
Newton.
Faraday.
all of above.
Kelvin.
Newton.
Answer
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Electromagnetic Field Theory
Inside a hollow conducting sphere
electric field changes with magnitude of the charge given to the conductor.
electric field changes with distance from the center of the sphere.
electric field is a non zero constant.
electric field is zero.
electric field changes with magnitude of the charge given to the conductor.
electric field changes with distance from the center of the sphere.
electric field is a non zero constant.
electric field is zero.
Answer
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Electromagnetic Field Theory
For a line characteristic impedance zo terminated is load zo/3, the reflection coefficient is
– 1/3.
– ½.
2/3.
1/3.
– 1/3.
– ½.
2/3.
1/3.
Answer
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