Electric power is the rate at which electrical energy is transferred or consumed in an electric circuit. It is measured in watts (W) and is calculated using the formula:
Power (P) = Voltage (V) x Current (I)
The electrical power in a circuit can be determined by multiplying the voltage across the circuit by the current flowing through it. Power is the product of voltage and current. The voltage is measured in volts (V) and the current is measured in amperes (A), also known as amps.
To calculate the power consumed or transferred by an electrical device, follow these steps:
1. Measure the voltage across the device using a voltmeter.
2. Measure the current flowing through the device using an ammeter.
3. Multiply the voltage by the current to calculate the power in watts.
For example, let's say you have a device with a voltage of 12 volts and a current of 2 amperes. The power consumed by the device would be:
Power (P) = 12 V x 2 A = 24 watts
This means that the device is consuming or transferring 24 watts of electrical energy.
It's important to note that power can also be calculated using other formulas such as P = I^2 * R (where R is the resistance) or P = V^2 / R. These formulas are applicable in different scenarios such as when you know the resistance of a circuit.
In summary, electrical power is the rate at which electrical energy is consumed or transferred in a circuit. It is calculated by multiplying the voltage across the circuit by the current flowing through it.
Please teach me electrical work done in given circuit.
Electric power
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