What is the relationship between voltage and resistance in a circuit based on Ohm's Law?
1 Answer
Ohm's Law describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. It states that the voltage across a resistor is directly proportional to the current flowing through it and the resistance of the resistor. The mathematical expression of Ohm's Law is:
V = I * R
where:
V is the voltage across the resistor (measured in volts, V).
I is the current flowing through the resistor (measured in amperes, A).
R is the resistance of the resistor (measured in ohms, Ω).
This equation means that if you increase the voltage applied across a resistor, the current flowing through it will also increase, assuming the resistance remains constant. Similarly, if you increase the resistance while keeping the voltage constant, the current will decrease.
Ohm's Law is a fundamental principle in electrical engineering and is widely used to analyze and design electrical circuits. It allows engineers to calculate the expected current flow in a circuit given the voltage and resistance or determine the required resistance for a specific current and voltage.
V = I * R
where:
V is the voltage across the resistor (measured in volts, V).
I is the current flowing through the resistor (measured in amperes, A).
R is the resistance of the resistor (measured in ohms, Ω).
This equation means that if you increase the voltage applied across a resistor, the current flowing through it will also increase, assuming the resistance remains constant. Similarly, if you increase the resistance while keeping the voltage constant, the current will decrease.
Ohm's Law is a fundamental principle in electrical engineering and is widely used to analyze and design electrical circuits. It allows engineers to calculate the expected current flow in a circuit given the voltage and resistance or determine the required resistance for a specific current and voltage.