What is voltage and how is it calculated in a circuit? How can we determine the voltage running through a lamp with a resistance of 45 ohms and 3 amps of current passing through it?
Voltage is the product of current and resistance in a circuit. To calculate the voltage running through the lamp, we can use the formula V = IR (Voltage = Current x Resistance).
Given:
Current (I) = 3 A
Resistance (R) = 45 Ω
Now, substitute the values into the formula:
V = 3 A x 45 Ω
V = 135 V
Therefore, the voltage running through the lamp with a resistance of 45 ohms and 3 amps of current passing through it is 135 volts.
What is Voltage?
Voltage is the electrical potential difference between two points in a circuit, measured in volts. It is a fundamental concept in electricity and is essential for the flow of current in a circuit. Voltage is often referred to as the "push" that moves electrons through a circuit.
Calculation of Voltage
To calculate the voltage in a circuit, you can use Ohm's Law, which states that Voltage (V) is equal to the product of Current (I) and Resistance (R) i.e., V = IR.
Determining Voltage in a Lamp
In the given scenario, where the lamp has a resistance of 45 ohms and 3 amps of current flowing through it, we can use the formula V = IR. By substituting the values into the equation (V = 3 A x 45 Ω), we find that the voltage running through the lamp is 135 volts.
In conclusion, voltage is a crucial aspect of electrical circuits, and it is determined by the current flowing through a circuit and the resistance it encounters. In the case of the lamp with a resistance of 45 ohms and 3 amps of current, the voltage running through it is calculated to be 135 volts.