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Current in DC Circuits Formula

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Current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. Check FAQs

I = \frac{V}{R}

I - Current?V - Voltage?R - Resistance?

Current in DC Circuits Example

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With units

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Here is how the Current in DC Circuits equation looks like with Values.

Here is how the Current in DC Circuits equation looks like with Units.

Here is how the Current in DC Circuits equation looks like.

0.75 = \frac{22.5}{30}

0.75A = \frac{22.5V}{30Ω}

0.75 = \frac{22.5}{30}

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Current in DC Circuits Solution

Follow our step by step solution on how to calculate Current in DC Circuits?

FIRST Step Consider the formula

I = \frac{V}{R}

Next Step Substitute values of Variables

∴

I = \frac{22.5V}{30Ω}

Next Step Prepare to Evaluate

∴

I = \frac{22.5}{30}

LAST Step Evaluate

∴

I = 0.75A

Current in DC Circuits Formula Elements

Variables

Current

Current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space.

Symbol: I

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Current

Voltage

Voltage, electric potential difference is the difference in electric potential between two points, which is defined as the work needed per unit of charge to move a test charge between the two points.

Symbol: V

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Voltage

Resistance

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms.

Symbol: R

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Resistance

Other formulas in DC Circuits category

Go Voltage in DC Circuit

V = I \cdot R

Go Maximum Power Transfer

P m = \frac{{V th}^{2} \cdot R L}{{(R L + R th)}^{2}}

Go Star to Delta Transformation

Z 1 = Z A + Z B + (\frac{Z A \cdot Z B}{Z C})

Go Delta to Star Transformation

Z A = \frac{Z 1 \cdot Z 3}{Z 1 + Z 2 + Z 3}

How to Evaluate Current in DC Circuits?

Current in DC Circuits evaluator uses Current = Voltage/Resistance to evaluate the Current, The Current in DC Circuits formula is defined as a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. Current is denoted by I symbol.

How to evaluate Current in DC Circuits using this online evaluator? To use this online evaluator for Current in DC Circuits, enter Voltage (V) & Resistance (R) and hit the calculate button.

FAQs on Current in DC Circuits

What is the formula to find Current in DC Circuits?

The formula of Current in DC Circuits is expressed as Current = Voltage/Resistance. Here is an example- 0.75 = 22.5/30.

How to calculate Current in DC Circuits?

With Voltage (V) & Resistance (R) we can find Current in DC Circuits using the formula - Current = Voltage/Resistance.

Can the Current in DC Circuits be negative?

Yes, the Current in DC Circuits, measured in Electric Current can be negative.

Which unit is used to measure Current in DC Circuits?

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

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