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24 Dec 2020

If a coil is wound around a steel core and electric current is passed through the coil, the steel core acts as a __

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Electricity and Magnetism
Skill
Solving problems by applying the concept of induced EMF
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Uttam Saikia
Uttam SaikiaLv10
24 Dec 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Heres my question hope someone can help:)

Calculate :

(a) the number of turns required for an inductor to absorb 230V ona 50Hz circuit
(b) the length of airgap required if the coil is to take amagnetizing current of 3A (r.m.s)
(c) the phase difference between the current and the terminalvoltage

Mean length of steel path, 500 mm
maximum flux density in core, 1T
sectional area of core, 3000mm2
maximum magnetic field strength for the steel, 250A/m
core loss, 1.7W/kg
density of core, 7800kg/m3
Neglect the resistance of the winding and any magnetic leakage andfringing. Assume the current waveform to be sinusoidal

In a transformer, energy is carried from the primary coil to the secondary coil by

A. The magnetic field in the iron core
B. The electrical heating of the primary coil
C. Electricity conducted through the iron core
D. The difference in voltage between the primary and secondary coils

If a coil of 150 turns is linked with a flux of 0.01Wb when carrying a current of 10A. If a second coil of 100 turns is uniformly wound over the first coil, the mutual inductance between the coils is_

 

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