How to Calculate and Solve for Magnetic Field Strength | Magnetic Properties
Last Updated on July 21, 2022
The magnetic field strength is illustrated by the image below.
To compute for magnetic field strength, three essential parameters are needed and these parameters are Number of Coils Spread together Closely (N), Magnitude of Current (I) and Length of Coil (L).
The formula for calculating magnetic field strength:
H = NI/L
Where:
H = Magnetic Field Strength
N = Number of Coils Spread together Closely
I = Magnitude of Current
L = Length of Coil
Given an example;
Find the magnetic field strength when the number of coils spread together closely is 4, the magntitude of current is 8 and the length of coil is 10.
This implies that;
N = Number of Coils Spread together Closely = 4
I = Magnitude of Current = 8
L = Length of Coil = 10
H = NI/L
H = (4)(8)/10
H = 32/10
H = 3.2
Therefore, the magnetic field strength is 3.2 A/m.
Calculating the Number of Coils Spread together Closely when the Magnetic Field Strength, the Magntitude of Current and the Length of Coil is Given.
N = HL / I
Where:
N = Number of Coils Spread together Closely
H = Magnetic Field Strength
I = Magnitude of Current
L = Length of Coil
Let’s solve an example;
Find the number of coils spread together closely when the magnetic field strength is 10, the magntitude of current is 5 and the length of coil is 2.
This implies that;
H = Magnetic Field Strength = 10
I = Magnitude of Current = 5
L = Length of Coil = 2
N = HL / I
N = (10)(2) / 5
N = 20 / 5
N = 4
Therefore, the number of coils spread together closely is 4.
Calculating the Magnitude of Current when the Magnetic Field Strength, the Number of Coils Spread together Closely and the Length of Coil is Given.
I = HL / N
Where:
I = Magnitude of Current
H = Magnetic Field Strength
N = Number of Coils Spread together Closely
L = Length of Coil
Let’s solve an example;
Find the magnitude of current when the magnetic field strength is 18, the number of coils spread together closely is 12 and the length of coil is 14.
This implies that;
H = Magnetic Field Strength = 18
N = Number of Coils Spread together Closely = 12
L = Length of Coil = 14
I = HL / N
I = (18)(14) / 12
I = 252 / 12
I = 21
Therefore, the magnitude of current is 21.
Calculating the Length of Coil when the Magnetic Field Strength, the Number of Coils Spread together Closely and the Magnitude of Current is Given.
L = NI / H
Where:
L = Length of Coil
H = Magnetic Field Strength
N = Number of Coils Spread together Closely
I = Magnitude of Current
Let’s solve an example;
Find the length of coil when the magnetic field strength is 5, the number of coild spread together closely is 12 and the magnitude of current is 10.
This implies that;
H = Magnetic Field Strength = 5
N = Number of Coils Spread together Closely = 12
I = Magnitude of Current = 10
L = NI / H
L = (12)(10) / 5
L = 120 / 5
L = 24
Therefore, the length of coil is 24.
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the magnetic field strength.
To get the answer and workings of the magnetic field strength using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Magnegtic Properities under Materials and Metallurgical
Now, Click on Magnetic Field Strength under Magnetic Properities
The screenshot below displays the page or activity to enter your values, to get the answer for the magnetic field strength according to the respective parameter which is the Number of Coils Spread together Closely (N), Magnitude of Current (I) and Length of Coil (L).
Now, enter the values appropriately and accordingly for the parameters as required by the Number of Coils Spread together Closely (N) is 4, Magnitude of Current (I) is 8 and Length of Coil (L) is 10.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the magnetic field strength and presents the formula, workings and steps too.