Mike Dolt Enterprises
Mike Dolt Enterprises
User: EEC, Location: Maryland
Asked on: Monday, April 11, 2011 at 10:46 am EDT
Answered on: Tuesday, May 14, 2024 at 4:02 am EDT
Question: Why is the delta triangle symbol used in formulas, such as Rint=(delta symbol)V/(delta symbol)I? Rint stands for internal resistance of power source
The delta triangle symbol (Δ) is used in formulas to represent a change in a quantity. In the formula you provided, Rint=(ΔV)/(ΔI), the Δ symbol represents the change in voltage (ΔV) and the change in current (ΔI).This formula is used to calculate the internal resistance of a power source. The internal resistance is the resistance of the power source itself, and it is important to know because it can affect the amount of current that flows through the circuit.To calculate the internal resistance, you need to measure the voltage across the power source and the current flowing through the circuit. You can then use the formula Rint=(ΔV)/(ΔI) to calculate the internal resistance.Here is an example of how to use the formula: Let's say you are using a power source with a voltage of 12 volts. You measure the current flowing through the circuit and find that it is 1 amp.* You then calculate the internal resistance using the formula:
Rint=(ΔV)/(ΔI)Rint=(12 volts)/(1 amp)Rint=12 ohms