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Electromagnetic Field Theory
The main purpose of choke is
none of above.
to pass low frequencies.
to block low frequencies.
to pass high frequencies.
none of above.
to pass low frequencies.
to block low frequencies.
to pass high frequencies.
Answer
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Related Question
Electromagnetic Field Theory
An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to
A monopole.
A quardra pole.
Both of A and B.
A dipole.
A monopole.
A quardra pole.
Both of A and B.
A dipole.
Answer
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Electromagnetic Field Theory
In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be
2.
8.
1.
4.
2.
8.
1.
4.
Answer
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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
0.15 J.
0.015 J.
1.15 J.
0.5 J.
0.15 J.
0.015 J.
1.15 J.
0.5 J.
Answer
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Electromagnetic Field Theory
The core of coil length is 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be
3 mH.
48 mH.
12 mH.
24 mH.
3 mH.
48 mH.
12 mH.
24 mH.
Answer
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In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to
No change in the impedance value
Decrease in the value of reactance
No change in the reactance value
An increase in the value of reactance
No change in the impedance value
Decrease in the value of reactance
No change in the reactance value
An increase in the value of reactance
Answer
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