Dc Voltage Drop Formula

The voltage drop formula is used in the calculation of voltage drop in the electrical circuit. Voltage drop is the decrease in electric potential while the electric current moves through the circuit. The decrease in voltage in the circuit is caused due to impedance.

Formula of DC Voltage Drop

The formula for DC voltage drop is

V=IR

Where,

  • V is the voltage drop in the circuit
  • I is the current through the circuit
  • R is the resistance

Solved Examples

Question 1: Calculate the dc voltage drop if 50 Ampere current flows through the wire of resistance 5 ohms.

Solution:

Given:

Current I = 50 A

Resistance R=5 ohms

Voltage drop is given by

V=IR

V=(50)(5)

V=250 volts

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