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How to Calculate Voltage Drop.
Energy

How to Calculate Voltage Drop.

Rosemary Njeri

Voltage drop is defined as the amount of voltage loss that occurs through all or part of a circuit due to impedance.

Excessive voltage drop in a circuit can cause lights to flicker or burn dimly, heaters to heat poorly, and motors to run hotter than normal and burn out.

Formula to calculate voltage drop.

Calculate Voltage Drop.

The resistivity value at 25 Celsius degree °C is 0.017 for copper and 0.0265 for aluminum.

Example:

Calculate the voltage drop of a copper wire of length 10 units , if the current passing through it is 20A , and its cross section area is 5 Square units.

Calculate Voltage Drop.

Therefore, the voltage drop is 0.68 Volts.

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