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# Voltage across Inductance Calculator

Enter the value of inductance, rate of change of current, and time to evaluate the voltage drop of the inductor.

## Voltage across Inductance Calculator

Voltage across inductance calculator is used to find the voltage drop of the inductor in an electrical circuit.

## What is the voltage across an inductance?

If current flows through an inductor it generates a magnetic field around the inductor. Changes in the rate of current with the passage of time generate a voltage across the inductor.

According to Faraday’s law of electromagnetic induction in a change of magnetic field through a closed loop of wire induces a voltage in the wire. In the inductor, the induced voltage opposes any changes in the current flowing through it.

## Formula of voltage:

**V = (L × I)/T**

Where,

- V = total voltage across the inductor
- L = inductance of the inductor
- I = rate of change of current
- T= time of the changing current

## How to evaluate the voltage across the inductor:

**Example 1:**

An inductor working in a DC Circuit with an inductance of 2, a rate of change of current is 20 in 2 seconds then find the voltage across the inductor.

**Solution:**

**Step 1: **

**Write the data from the above question.**

Inductance = L = 2, rate of current = I = 20, Time = T = 2, V=?

**Step 2:**

**Write the formula to calculate the voltage across the inductor.**

V = (L × I)/T

**Step 3:**

**Apply the values in the above formula.**

L = 2, I = 20, T = 2

V = (L × I)/T

V = (2 × 20)/2

V = (40)/2

**V = 20 volt**

Therefore, the voltage across the inductor is 20 volts.

**Example 2:**

An inductor working in an AC Circuit with an inductance of 6, a rate of change of current is 25 in 5 seconds then find the voltage across the inductor.

**Solution:**

**Step 1: **

**Write the data from the above question.**

Inductance = L = 6, rate of current = I = 25, Time = T = 5, V=?

**Step 2:**

**Write the formula to calculate the voltage across the inductor.**

V = (L × I)/T

**Step 3:**

**Apply the values in the above formula.**

L = 6, I = 25, T = 5

V = (L × I)/T

V = (6 × 25)/5

V = (150)/5

**V = 30 volts**

Therefore, the voltage across the inductor is 30 volts.