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Coil Voltage Calculator

Free Coil Voltage Calculator to calculate static and induced coil voltage instantly using accurate electrical formulas with step-by-step results.

Voltage Per Turn

Static coil under DC voltage

Induced Voltage

Dynamic magnetic field (Faraday's Law)

Formula: Vcoil = Vtotal / N
Formula: V = N × (dΦ/dt)
Where dΦ/dt is the rate of change of magnetic flux

A Coil Voltage Calculator is an easy online tool that helps you calculate the voltage of an electrical coil accurately. Whether you are working with transformers, inductors, solenoids, or electromagnetic systems, coil voltage is a key value in electrical and electronics engineering.

We developed this Coil Voltage Calculator so users can calculate coil voltage instantly without complex manual calculations. The tool works for both static coil voltage and induced coil voltage using standard electrical formulas.

This calculator is useful for students, engineers, technicians, and hobbyists who want fast and reliable results.

What Is Coil Voltage?

Coil voltage is the electrical potential difference across a coil or generated within a coil due to magnetic effects. It depends on how the coil is used in a circuit.

In a static condition, coil voltage is based on the total applied voltage and the number of turns.

In a dynamic condition, coil voltage is induced due to a change in magnetic flux.

Both cases are handled accurately by this Coil Voltage Calculator.

Coil Voltage Formula

Static Coil Voltage Formula

This formula is used when a known voltage is applied across a coil.

Coil Voltage per Turn = Total Voltage ÷ Number of Turns

In normal text format:

V_coil = V_total / N

Where

  • V_coil is the voltage per turn
  • V_total is the total applied voltage
  • N is the number of turns in the coil

This formula is commonly used in transformer and solenoid design.

Induced Coil Voltage Formula

When voltage is generated due to a changing magnetic field, Faraday’s Law is used.

Induced Coil Voltage = Number of Turns × Change in Flux ÷ Time

In normal text format:

V = N × (ΔΦ / Δt)

Where

  • V is the induced voltage
  • N is the number of turns
  • ΔΦ is the change in magnetic flux
  • Δt is the time interval

This formula is used in generators, motors, and electromagnetic systems.

How to Use the Online Coil Voltage Calculator

First, choose the calculation type. You can select static coil voltage or induced coil voltage.

If you choose static coil voltage, enter the total voltage and the number of turns. Select the correct voltage unit if needed.

If you choose induced coil voltage, enter the number of turns, the change in magnetic flux, and the time interval. Select the correct flux and time units.

After entering all values, click the calculate button. The calculator instantly shows the coil voltage along with clear calculation steps.

No manual math is required, and results are displayed in clean, readable numbers.

Example Coil Voltage Calculation

Example 1: Static Coil Voltage

Suppose the total applied voltage is 120 volts and the coil has 60 turns.

Using the formula:

V_coil = 120 ÷ 60

Result:

Coil Voltage per Turn = 2 volts

This means each turn of the coil carries 2 volts.

Example 2: Induced Coil Voltage

Assume a coil has 200 turns.

The change in magnetic flux is 0.04 weber.

The time interval is 0.02 seconds.

Using the formula:

V = 200 × (0.04 ÷ 0.02)

V = 200 × 2

Result:

Induced Coil Voltage = 400 volts

This voltage is generated due to the changing magnetic field.

Why Use Our Coil Voltage Calculator?

Our Coil Voltage Calculator is designed for speed, accuracy, and ease of use. It follows standard electrical engineering equations and supports unit conversion automatically.

The calculator avoids scientific notation, shows step-by-step solutions, and works smoothly on all devices. It is ideal for learning, teaching, and professional calculations.

Final Verdict

The Coil Voltage Calculator is a reliable and user-friendly tool for calculating coil voltage in both static and induced conditions. It saves time, removes calculation errors, and helps users understand how coil voltage works.

If you need fast and accurate coil voltage results, this calculator is the perfect solution.

FAQs

What is a Coil Voltage Calculator?

A Coil Voltage Calculator is an online tool that calculates voltage across a coil or voltage induced in a coil using standard electrical formulas.

Can this calculator be used for transformers?

Yes, the static coil voltage formula is commonly used in transformer design and analysis.

Is this calculator suitable for students?

Yes, it is perfect for students because it shows clear steps and uses simple formulas.

Does the calculator support induced voltage calculations?

Yes, it uses Faraday’s Law to calculate induced coil voltage accurately.

Are the formulas used scientifically correct?

Yes, all formulas used are standard electrical engineering equations.