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 split coil.

Joule heating does not occur in each of the coils.

An emf is induced in both coils.

Equal joule heating occurs in both coils.

An emf is induced in split coil.

Joule heating does not occur in each of the coils.

An emf is induced in both coils.

Equal joule heating occurs in both coils.

ANSWER DOWNLOAD EXAMIANS APP

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.

24 mH.

12 mH.

3 mH.

48 mH.

24 mH.

12 mH.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing?

20 mH.

10 mH.

5 mH.

0 mH.

20 mH.

10 mH.

5 mH.

0 mH.

ANSWER DOWNLOAD EXAMIANS APP

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

infinite.

depends on magnetic movements outside the closed surface

zero.

depends on magnetic movements inside the closed surface.

infinite.

depends on magnetic movements outside the closed surface

zero.

depends on magnetic movements inside the closed surface.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
In above problem the induced emf will be reduced to half if the conductor moves an angle of

30° to the direction of field.

60° to the direction of field.

45° to the direction of field.

75° to the direction of field.

30° to the direction of field.

60° to the direction of field.

45° to the direction of field.

75° to the direction of field.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying

106 Amp/sec.

106 volts/sec.

106 volts.

106 Amp.

106 Amp/sec.

106 volts/sec.

106 volts.

106 Amp.

ANSWER DOWNLOAD EXAMIANS APP

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 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

Electromagnetic Field Theory The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing?

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

Electromagnetic Field Theory In above problem the induced emf will be reduced to half if the conductor moves an angle of

Electromagnetic Field Theory If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying

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
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

Electromagnetic Field Theory
The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing?

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

Electromagnetic Field Theory
In above problem the induced emf will be reduced to half if the conductor moves an angle of

Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying