FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Field Current Formula

Fx Copy

LaTeX Copy

Field current determines the strength of the magnetic field that induces the voltage in the armature winding. Check FAQs

I f = \frac{E f}{R f}

I_f - Field Current?E_f - Field Coil Voltage?R_f - Field Resistance?

Field Current Example

With values

With units

Only example

Here is how the Field Current equation looks like with Values.

Here is how the Field Current equation looks like with Units.

Here is how the Field Current equation looks like.

83.3333 = \frac{42.5}{0.51}

83.3333A = \frac{42.5V}{0.51Ω}

83.3333 = \frac{42.5}{0.51}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electrical » Category

Electrical Machine Design » fx Field Current

Field Current Solution

Follow our step by step solution on how to calculate Field Current?

FIRST Step Consider the formula

I f = \frac{E f}{R f}

Next Step Substitute values of Variables

∴

I f = \frac{42.5V}{0.51Ω}

Next Step Prepare to Evaluate

∴

I f = \frac{42.5}{0.51}

Next Step Evaluate

∴

I f = 83.3333333333333A

LAST Step Rounding Answer

∴

I f = 83.3333A

Field Current Formula Elements

Variables

Field Current

Field current determines the strength of the magnetic field that induces the voltage in the armature winding.

Symbol: I_f

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Field Current

Field Coil Voltage

The field coil voltage refers to the voltage applied to the field winding or field coil of a rotating machine, such as a generator or motor.

Symbol: E_f

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Field Coil Voltage

Field Resistance

Field resistance refers to the electrical resistance of the field winding or field coil in a machine such as a generator or motor.

Symbol: R_f

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Field Resistance

Other formulas in Electrical Parameters category

Go Specific Electric Loading

q av = \frac{I a \cdot Z}{π \cdot n || \cdot D a}

Go Specific Electric Loading using Output Coefficient AC

q av = \frac{C o(ac) \cdot 1000}{11 \cdot B av \cdot K w}

Go Winding Factor using Output Coefficient AC

K w = \frac{C o(ac) \cdot 1000}{11 \cdot B av \cdot q av}

Go Output Power of Synchronous Machine

P o = C o(ac) \cdot 1000 \cdot {D a}^{2} \cdot L a \cdot N s

How to Evaluate Field Current?

Field Current evaluator uses Field Current = Field Coil Voltage/Field Resistance to evaluate the Field Current, The Field current is the current flowing through the windings in the non-moving part of the machine, which is responsible for the production of magnetic field. The field current formula is used to calculate the current required for the field coil of an electrical machine, such as a generator or motor. The field coil current is responsible for producing the magnetic field necessary for the operation of the machine. The specific formula for field current may vary depending on the machine's characteristics and design requirements. Field Current is denoted by I_f symbol.

How to evaluate Field Current using this online evaluator? To use this online evaluator for Field Current, enter Field Coil Voltage (E_f) & Field Resistance (R_f) and hit the calculate button.

FAQs on Field Current

What is the formula to find Field Current?

The formula of Field Current is expressed as Field Current = Field Coil Voltage/Field Resistance. Here is an example- 83.33333 = 42.5/0.51.

How to calculate Field Current?

With Field Coil Voltage (E_f) & Field Resistance (R_f) we can find Field Current using the formula - Field Current = Field Coil Voltage/Field Resistance.

Can the Field Current be negative?

No, the Field Current, measured in Electric Current cannot be negative.

Which unit is used to measure Field Current?

Field Current is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Field Current can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Field Current Formula

Field Current Example

Field Current Solution

Field Current Formula Elements

Other formulas in Electrical Parameters category

How to Evaluate Field Current?

FAQs on Field Current

Variable Name