Not enough information. Power = current x voltage. Since voltage can be anything, there is no way to calculate power. Time is irrelevant; though once you have the power, it can help you calculate energy (energy = power x time).
Voltage x Current = Power So Power / voltage = current Now you do the math
Voltage x current. In a resistor for example it is the voltage drop across it that is relevant, it may be part of a circuit.
Power = (current) times (voltage)Current = (Power) divided by (voltage)Voltage = (Power) divided by (current)
The unit of power is watts, the unit of current is amps, and the unit of voltage it volts. Power = Voltage X Current Voltage = Power / Current Current = Power / Voltage In electricity, power is symbolized with a P, current with an I, and voltage with a V. The real formula looks like: P = V x I V = P / I I = P / V
Since power is the product of voltage and current, you will need to find out the power rating of the headlamp when on low beam. To find the current, divide the power of the lamp by the voltage (12 V).
Divide Watts by Volts ; this gives you Amps.
Voltage x Current = Power So Power / voltage = current Now you do the math
P = I^2 R = IV = v^2 / R , Where P is power, I is current, R is resistance, and V is voltage. Given voltage and current, power = current * voltage, or P = IV.
To calculate wattage, you need to multiply the voltage (V) by the current (I). The formula is: Wattage (W) = Voltage (V) x Current (I). This formula applies to electrical circuits where the voltage is known and the current is flowing.
The power rating of a bulb is calculated by multiplying the voltage across the bulb by the current passing through it. The formula is P = V * I, where P is power in watts, V is voltage in volts, and I is current in amperes. This calculation helps determine the amount of energy the bulb consumes during operation.
The power dissipated across a resistor, or any device for that matter, is watts, or voltage times current. If you don't know one of voltage or current, you can calculate it from Ohm's law: voltage equals resistance times current. So; if you know voltage and current, power is voltage times current; if you know voltage and resistance, watts is voltage squared divided by resistance; and if you know current and resistance, watts is current squared times resistance.
To calculate the current an appliance can use, divide the power rating of the appliance (in watts) by the voltage it operates on (in volts). The formula is: Current (in amperes) = Power (in watts) / Voltage (in volts). This calculation will give you the maximum current the appliance can draw under normal operating conditions.
V = I x R V = voltage, I = Current, R = Resistance or it can be calculate like this V = P / I V = Voltage, P = Electric Power, I = Current
Output power can be calculated by multiplying the current (I) flowing through a device by the voltage (V) across it, i.e., P = I * V. This formula is based on Ohm's Law, which describes the relationship between voltage, current, and resistance in an electrical circuit.
Voltage x current. In a resistor for example it is the voltage drop across it that is relevant, it may be part of a circuit.
To calculate the voltage, you need to know the current (amperage) as well. The formula to calculate power (watts) given voltage (volts) and current (amps) is: Power (P) = Voltage (V) x Current (I). Without knowing the current, it is not possible to directly convert watts to volts.
P = E * I Power (watts) equals voltage (E) times current (I)