(ii) Calculate the inductance of a coil wound on a ferromagnetic cylinder of 2 mm diameter and 10 mm length. There are 200 turns on the coil and the relative permeability of the core is 600.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Can you do Part B only 

(i)
(ii)
(iii)
(i)
(ii)
In your own words, explain why the presence of a ferromagnetic
core increases the inductance of a coil.
Calculate the inductance of a coil wound on a ferromagnetic
cylinder of 2 mm diameter and 10 mm length. There are 200
turns on the coil and the relative permeability of the core is 600.
How does a real inductor differ from an ideal component?
The coil in (a) forms part of the switching mechanism of a relay
switch controlled by a transistor. The transistor produces a
current which can switch between 5 mA and zero over 1 μs.
Ignoring any losses, calculate the voltage induced by the relay
coil and say why this is problematic for the transistor.
What component can be added to the relay circuit to prevent the
problem observed in (b)(i)?
Transcribed Image Text:(i) (ii) (iii) (i) (ii) In your own words, explain why the presence of a ferromagnetic core increases the inductance of a coil. Calculate the inductance of a coil wound on a ferromagnetic cylinder of 2 mm diameter and 10 mm length. There are 200 turns on the coil and the relative permeability of the core is 600. How does a real inductor differ from an ideal component? The coil in (a) forms part of the switching mechanism of a relay switch controlled by a transistor. The transistor produces a current which can switch between 5 mA and zero over 1 μs. Ignoring any losses, calculate the voltage induced by the relay coil and say why this is problematic for the transistor. What component can be added to the relay circuit to prevent the problem observed in (b)(i)?
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Can you do PART B not A

(i)
(ii)
(iii)
(i)
(ii)
In your own words, explain why the presence of a ferromagnetic
core increases the inductance of a coil.
Calculate the inductance of a coil wound on a ferromagnetic
cylinder of 2 mm diameter and 10 mm length. There are 200
turns on the coil and the relative permeability of the core is 600.
How does a real inductor differ from an ideal component?
The coil in (a) forms part of the switching mechanism of a relay
switch controlled by a transistor. The transistor produces a
current which can switch between 5 mA and zero over 1 μs.
Ignoring any losses, calculate the voltage induced by the relay
coil and say why this is problematic for the transistor.
What component can be added to the relay circuit to prevent the
problem observed in (b)(i)?
Transcribed Image Text:(i) (ii) (iii) (i) (ii) In your own words, explain why the presence of a ferromagnetic core increases the inductance of a coil. Calculate the inductance of a coil wound on a ferromagnetic cylinder of 2 mm diameter and 10 mm length. There are 200 turns on the coil and the relative permeability of the core is 600. How does a real inductor differ from an ideal component? The coil in (a) forms part of the switching mechanism of a relay switch controlled by a transistor. The transistor produces a current which can switch between 5 mA and zero over 1 μs. Ignoring any losses, calculate the voltage induced by the relay coil and say why this is problematic for the transistor. What component can be added to the relay circuit to prevent the problem observed in (b)(i)?
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