Angular Deflection of Moving Iron Formula

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Deflection Angle in Iron shows how much the needle moves in response to electrical current, indicating the measured quantity's magnitude. Check FAQs
θ=0.5(imi)2dL|dθKmi
θ - Deflection Angle in Iron?imi - Current in Iron?dL|dθ - Inductance Change with Angle?Kmi - Spring Constant?

Angular Deflection of Moving Iron Example

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With units
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Here is how the Angular Deflection of Moving Iron equation looks like with Values.

Here is how the Angular Deflection of Moving Iron equation looks like with Units.

Here is how the Angular Deflection of Moving Iron equation looks like.

0.5087Edit=0.5(0.5Edit)210.5Edit2.58Edit
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Angular Deflection of Moving Iron Solution

Follow our step by step solution on how to calculate Angular Deflection of Moving Iron?

FIRST Step Consider the formula
θ=0.5(imi)2dL|dθKmi
Next Step Substitute values of Variables
θ=0.5(0.5A)210.5H/rad2.58Nm/rad
Next Step Prepare to Evaluate
θ=0.5(0.5)210.52.58
Next Step Evaluate
θ=0.508720930232558rad
LAST Step Rounding Answer
θ=0.5087rad

Angular Deflection of Moving Iron Formula Elements

Variables
Deflection Angle in Iron
Deflection Angle in Iron shows how much the needle moves in response to electrical current, indicating the measured quantity's magnitude.
Symbol: θ
Measurement: AngleUnit: rad
Note: Value should be greater than 0.
Current in Iron
Current in Iron causes the iron vane to move due to magnetic forces, deflecting the pointer. The extent of deflection indicates the magnitude of the current flowing through the instrument.
Symbol: imi
Measurement: Electric CurrentUnit: A
Note: Value should be greater than 0.
Inductance Change with Angle
Inductance Change with Angle means that as the iron vane moves, it alters the magnetic field, affecting the instrument's reading.
Symbol: dL|dθ
Measurement: Change in Inductance with Change in AngleUnit: H/rad
Note: Value can be positive or negative.
Spring Constant
Spring Constant determines the restoring force of the spring opposing the deflection, ensuring accurate measurement by balancing the magnetic force from the current.
Symbol: Kmi
Measurement: Torsion ConstantUnit: Nm/rad
Note: Value should be greater than 0.

Other formulas in Moving Iron Type category

​Go Deflecting Torque of Moving Iron
Td=0.5((imi)2)dL|dθ

How to Evaluate Angular Deflection of Moving Iron?

Angular Deflection of Moving Iron evaluator uses Deflection Angle in Iron = (0.5*(Current in Iron)^2*Inductance Change with Angle)/Spring Constant to evaluate the Deflection Angle in Iron, The Angular Deflection of Moving Iron gives the angle at which both torques are balanced. It is the indicating parameter and is proportional to the square of RMS value of the operating current. Deflection Angle in Iron is denoted by θ symbol.

How to evaluate Angular Deflection of Moving Iron using this online evaluator? To use this online evaluator for Angular Deflection of Moving Iron, enter Current in Iron (imi), Inductance Change with Angle (dL|dθ) & Spring Constant (Kmi) and hit the calculate button.

FAQs on Angular Deflection of Moving Iron

What is the formula to find Angular Deflection of Moving Iron?
The formula of Angular Deflection of Moving Iron is expressed as Deflection Angle in Iron = (0.5*(Current in Iron)^2*Inductance Change with Angle)/Spring Constant. Here is an example- 0.238636 = (0.5*(0.5)^2*10.5)/2.58.
How to calculate Angular Deflection of Moving Iron?
With Current in Iron (imi), Inductance Change with Angle (dL|dθ) & Spring Constant (Kmi) we can find Angular Deflection of Moving Iron using the formula - Deflection Angle in Iron = (0.5*(Current in Iron)^2*Inductance Change with Angle)/Spring Constant.
Can the Angular Deflection of Moving Iron be negative?
No, the Angular Deflection of Moving Iron, measured in Angle cannot be negative.
Which unit is used to measure Angular Deflection of Moving Iron?
Angular Deflection of Moving Iron is usually measured using the Radian[rad] for Angle. Degree[rad], Minute[rad], Second[rad] are the few other units in which Angular Deflection of Moving Iron can be measured.
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