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Electromagnetic Field Theory
Cork Screw rule is used to find
direction of current.
direction of electric field.
direction of magnetic field.
direction of emf.
direction of current.
direction of electric field.
direction of magnetic field.
direction of emf.
Answer
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Related Question
Electromagnetic Field Theory
Ohm’s law in point from field theory can be expressed as
V = IR.
J = σE.
J = E / σ.
R = ρ × ( l / A).
V = IR.
J = σE.
J = E / σ.
R = ρ × ( l / A).
Answer
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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
3.
8.
4.
2.
3.
8.
4.
2.
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
4.5
2.5
1.5
3.5
4.5
2.5
1.5
3.5
Answer
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Electromagnetic Field Theory
A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)
QD.
QR.
Q√(R2 + d2).
QR2/d.
QD.
QR.
Q√(R2 + d2).
QR2/d.
Answer
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Electromagnetic Field Theory
Unit of electric flux density is
farad / meter.
weber / meter2.
coulomb.
coulomb / meter2.
farad / meter.
weber / meter2.
coulomb.
coulomb / meter2.
Answer
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