Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

Electromagnetic Field Theory
Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

An emf is induced in both coils.

Equal joule heating occurs in both coils.

Joule heating does not occur in each of the coils.

An emf is induced in split coil.

An emf is induced in both coils.

Equal joule heating occurs in both coils.

Joule heating does not occur in each of the coils.

An emf is induced in split coil.

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Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to

Distance of the point from the antenna

Wave frequency

Antenna height

Current of the antenna

Distance of the point from the antenna

Wave frequency

Antenna height

Current of the antenna

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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

all of above.

permeability of core.

cross sectional area of their common core.

the number of their turns.

all of above.

permeability of core.

cross sectional area of their common core.

the number of their turns.

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Electromagnetic Field Theory
Magnetic flux density emerging out of a closed surface is

zero.

depends on magnetic movements outside the closed surface

infinite.

depends on magnetic movements inside the closed surface.

zero.

depends on magnetic movements outside the closed surface

infinite.

depends on magnetic movements inside the closed surface.

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Electromagnetic Field Theory
A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by

ab Bo cosω t.

Bo ω sinω t.

Zero.

abω Bo sinω t.

ab Bo cosω t.

Bo ω sinω t.

Zero.

abω Bo sinω t.

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Electromagnetic Field Theory
The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then

turns ratio of the transformer is also two.

it is a perfect transformer.

none of these.

transformer is an ideal transformer.

turns ratio of the transformer is also two.

it is a perfect transformer.

none of these.

transformer is an ideal transformer.

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Electromagnetic Field Theory

Electromagnetic Field Theory Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to

Electromagnetic Field Theory Mutual inductance between two magnetically coupled coils depends on

Electromagnetic Field Theory Magnetic flux density emerging out of a closed surface is

Electromagnetic Field Theory The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then

Electromagnetic Field Theory
Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?

Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to

Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

Electromagnetic Field Theory
Magnetic flux density emerging out of a closed surface is

Electromagnetic Field Theory
The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then