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The big power Formulas: Formula 1 - Electrical (electric) power equation: Power P = I × V = R × I2 = V2 ⁄ R
where power P is in watts, voltage V is in volts and current I is in amperes (DC).
If there is AC, look also at the power factor PF = cos φ and φ = power factor angle
(phase angle) between voltage and amperage. Formula 2 - Mechanical (mechanic) power equation: Power P = E ⁄ t = W ⁄ t
where power P is in watts, energy E is in joules, and time t is in seconds. 1 W = 1 J/s Scroll down to related links and look at "Formulas and calculations - Electricity and Electric Charge".
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoUse whichever one will be most helpful.
The choice is yours.
Power = . . . . .(Voltage) x (Current)
(current)2 x (resistance)
(voltage)2/(resistance)
(work)/(time)
(Force) x (speed)
(energy)/(time)
(force x distance)/(time)
(mass) x (length)2/(time)3
Wiki User
∙ 12y agoThe electrical terminology of power in a circuit is watts. Watts are the product of amperage times voltage. This is a simplified version but this version is used as a basic formula for single and three phase formulas.
Wiki User
∙ 15y agoP=IV where P = power I = current V= voltage
Wiki User
∙ 12y agoPower = current times Voltage.
or
P=IV
P=(5.77 A)(220 V)
P=1269.4 W
Wiki User
∙ 14y agoenergy= CVsquared/2
or
=QV/2
C=capacitance
V=voltage
Q=charge
Wiki User
∙ 14y agoP = V*I = V^2 / R = I^2*R
Wiki User
∙ 12y agoP=ir2
Anonymous
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What is the dissipated heat from the power station used for?
Dissipated heat is used to create carbon dioxide in radiators
Tripling the current in a circuit with constant resistance has the effect of changing the power by what factor?
Power dissipated is ( I2 R ).If you triple the voltage across a constant resistance, it will dissipate9 times as much power as it did before the voltage changed.
Five series resistors each dissipate 50 mW of power What is the total power?
AS:total power = P1 + P2 + P3 + .......so,total power = 5(50mW)= 0.25Wtotal power dissipated by the five resistors is 0.25W.
If current in an electric stove is doubled how will the thermal energy produced per unit time change?
P = I2R (power = current squared times resistance). Therefore, if the current doubles, the amount of dissipated electrical energy will increase by a factor of 4.P = I2R (power = current squared times resistance). Therefore, if the current doubles, the amount of dissipated electrical energy will increase by a factor of 4.P = I2R (power = current squared times resistance). Therefore, if the current doubles, the amount of dissipated electrical energy will increase by a factor of 4.P = I2R (power = current squared times resistance). Therefore, if the current doubles, the amount of dissipated electrical energy will increase by a factor of 4.
Energy that is dissipated in a crash is called?
Kinetic Energy is energy that is dissipated in a crash.
What is an equation for power?
Power = (energy used)/(time to use it)Power dissipated by an electrical circuit =(voltage across the circuit) x (current through the circuit)or(resistance of the circuit) x (square of the current through the circuit)or(square of the voltage across the circuit)/(resistance of the circuit)
When you have watts in a series circuit do you add up the total or is it the reciprocal?
The power dissipated by the complete circuit, no matter whether it's a series or parallel one, is the simple sum of the power dissipated by each component of the circuit.
Determine the power dissipated if the voltage supplied to a circuit is 12V and the current measured is 3A?
The power dissipated by a circuit with a voltage of 12V and a current of 3A is 36W. Watts is Volts times Amps.
How do you find power in a series circuit?
Power dissipated by the entire series circuit = (voltage between its ends)2 / (sum of resistances of each component in the circuit). Power dissipated by one individual component in the series circuit = (current through the series circuit)2 x (resistance of the individual component).
What equation represents power?
Power = (energy dissipated or moved) / (time to move or dissipate it)
In a parallel circuit does the power of each branch add up?
Yes, the total power dissipated through the circuit is equal to the sum of the power of each branch in a parallel circuit.
How is a parallel circuit the same as a series circuit?
In both cases, the power dissipated is measured by multiplying the voltage across the circuit by the current through the circuit.
Is a series circuit the same as a parallel circuit?
In both cases, the power dissipated is measured by multiplying the voltage across the circuit by the current through the circuit.
A series circuit has 100mA flowing through a 1.5kohm load What is the power dissipated by the load?
A series circuit has 100mA flowing through a 1.5kohm load. The power dissipated by the load is equivalent to 15 Watt. This is based on the formula, power is equals to square current times load.
What happens to the power used in a circuit?
Usually dissipated as heat. Can be converted into light, motion, sound, etc.
What is the Power dissipated allowed by a circuit breaker with 208 volts and 5 amps?
1,040 watts or 1.04 KW.
Is the power dissipated in a parallel circuit larger than the power dissipated in a serial circuit?
Consider t resistors with same Ohmic values. If they are in series total resistance Rt = R1 + R2. if they are in parallel then total resistance Rt = 1/R1 + 1/R2. Series connection will have higher resistance.
