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Primary Winding Resistance Formula

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Resistance of Primary Winding is the resistance of primary winding. Check FAQs

R 1 = \frac{R' 1}{K^{2}}

R₁ - Resistance of Primary?R'₁ - Resistance of Primary in Secondary?K - Transformation Ratio?

Primary Winding Resistance Example

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Here is how the Primary Winding Resistance equation looks like with Values.

Here is how the Primary Winding Resistance equation looks like with Units.

Here is how the Primary Winding Resistance equation looks like.

17.9792 = \frac{25.89}{{1.2}^{2}}

17.9792Ω = \frac{25.89Ω}{{1.2}^{2}}

17.9792 = \frac{25.89}{{1.2}^{2}}

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Primary Winding Resistance Solution

Follow our step by step solution on how to calculate Primary Winding Resistance?

FIRST Step Consider the formula

R 1 = \frac{R' 1}{K^{2}}

Next Step Substitute values of Variables

∴

R 1 = \frac{25.89Ω}{{1.2}^{2}}

Next Step Prepare to Evaluate

∴

R 1 = \frac{25.89}{{1.2}^{2}}

Next Step Evaluate

∴

R 1 = 17.9791666666667Ω

LAST Step Rounding Answer

∴

R 1 = 17.9792Ω

Primary Winding Resistance Formula Elements

Variables

Resistance of Primary

Resistance of Primary Winding is the resistance of primary winding.

Symbol: R₁

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Resistance of Primary

Resistance of Primary in Secondary

Resistance of Primary in Secondary is the Resistance of Primary winding in Secondary.

Symbol: R'₁

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Resistance of Primary in Secondary

Transformation Ratio

The Transformation Ratio of the transformer is used to find the relation between primary voltage and secondary voltage.

Symbol: K

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Transformation Ratio

Other formulas in Resistance category

Go Equivalent Reactance of Transformer from Primary Side

X 01 = X L1 + X' 2

Go Equivalent Reactance of Transformer from Secondary Side

X 02 = X L2 + X' 1

Go Primary Leakage Reactance

X L1 = \frac{X' 1}{K^{2}}

Go Reactance of Primary Winding in Secondary

X' 1 = X L1 \cdot K^{2}

How to Evaluate Primary Winding Resistance?

Primary Winding Resistance evaluator uses Resistance of Primary = Resistance of Primary in Secondary/(Transformation Ratio^2) to evaluate the Resistance of Primary, The Primary Winding Resistance formula is defined as the resistance of primary windings. its SI unit is ohms. It is useful for finding Resistance to the primary winding in the secondary winding. Resistance of Primary is denoted by R₁ symbol.

How to evaluate Primary Winding Resistance using this online evaluator? To use this online evaluator for Primary Winding Resistance, enter Resistance of Primary in Secondary (R'₁) & Transformation Ratio (K) and hit the calculate button.

FAQs on Primary Winding Resistance

What is the formula to find Primary Winding Resistance?

The formula of Primary Winding Resistance is expressed as Resistance of Primary = Resistance of Primary in Secondary/(Transformation Ratio^2). Here is an example- 17.97917 = 25.89/(1.2^2).

How to calculate Primary Winding Resistance?

With Resistance of Primary in Secondary (R'₁) & Transformation Ratio (K) we can find Primary Winding Resistance using the formula - Resistance of Primary = Resistance of Primary in Secondary/(Transformation Ratio^2).

Can the Primary Winding Resistance be negative?

Yes, the Primary Winding Resistance, measured in Electric Resistance can be negative.

Which unit is used to measure Primary Winding Resistance?

Primary Winding Resistance is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Primary Winding Resistance can be measured.

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