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Electromagnetic Field Theory
Which of following is the unit of inductance?
Milli- henry.
Ampere turns.
Ohm.
Webers / m.
Milli- henry.
Ampere turns.
Ohm.
Webers / m.
Answer
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Related Question
Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be
parallel to axis.
zero.
perpendicular to axis.
at an angle 45o with the axis.
parallel to axis.
zero.
perpendicular to axis.
at an angle 45o with the axis.
Answer
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Electromagnetic Field Theory
Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike?
Dust particles may not accumulate
None of these
Charge per unit area becomes very high for lightening to discharge
Rain drops may not collect
Dust particles may not accumulate
None of these
Charge per unit area becomes very high for lightening to discharge
Rain drops may not collect
Answer
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Electromagnetic Field Theory
Fleming's right hand rule may be applied to an electric generator to find out the direction of
magnetic field.
None of these
induced emf.
rotor rotation.
magnetic field.
None of these
induced emf.
rotor rotation.
Answer
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Electromagnetic Field Theory
Poyniting vector has the dimensions
Watts/metre2.
Watt × metre.
Watt × metre2.
Watt/metre.
Watts/metre2.
Watt × metre.
Watt × metre2.
Watt/metre.
Answer
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Electromagnetic Field Theory
A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is
Due to transformer only.
Due to both rotating and transformer action.
Due to rotating only.
Zero.
Due to transformer only.
Due to both rotating and transformer action.
Due to rotating only.
Zero.
Answer
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