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Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.
0.5T.
2.5T.
10T.
5T.
0.5T.
2.5T.
10T.
5T.
Answer
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Related Question
Electromagnetic Field Theory
Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH.
250.
150.
145.
225.
250.
150.
145.
225.
Answer
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Electromagnetic Field Theory
What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it?
Unity.
Infinity.
Zero.
Depends on strength of current element.
Unity.
Infinity.
Zero.
Depends on strength of current element.
Answer
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Electromagnetic Field Theory
Unit of electric flux density is
coulomb / meter2.
weber / meter2.
farad / meter.
coulomb.
coulomb / meter2.
weber / meter2.
farad / meter.
coulomb.
Answer
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Electromagnetic Field Theory
When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be
pulsating.
steady.
none of these.
alternating.
pulsating.
steady.
none of these.
alternating.
Answer
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Electromagnetic Field Theory
An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be
2.5
4.5
3.5
1.5
2.5
4.5
3.5
1.5
Answer
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