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What is the relationship between voltage power and 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
How do you make voltage?
Power (P) = Voltage (V) x Amperage (I) Written as P=VxI or to find Voltage V=P/I Voltage is measured in Volts (V) Amperage is measured in Amperes (Amps or A) Power is measured in Watts (W)
What is the product of current and voltage?
power in watts
WHAT ARE Electric power CALCULATIONS?
Power can be found by the following equations depending upon what information you have available. Power = Voltage x Current ; P=VI Power = Current Squared x Resistance ; P=I2R Power = Voltage Squared / Resistance ; P=V2/R
Find an expression for power that involves only current and voltage?
That is the basic one. P=I*E. Power in watts (P) equals current flow in amps (I) times the potential voltage (E) in volts.
What happens to the power in a circuit as the current increases?
P=VI If current (I) increases then P will increase proportionally. That is, assuming that voltage (V) remains constant. If voltage decreases and current increases or vice versa, proportionally then P will remain the same.
What do you mean by power is directly proprtional to voltgae?
That statement is not correct. Power is proportional to the square of the voltage. "Power is directly proportional to voltage" claims that there is a relationship of the type: P=kV, where power is voltage, multiplied by some constant. That means for example that if voltage doubles, power doubles as well. The correct relation is: power is proportional to the square of the voltage. That means that if voltage doubles, power increases by a factor of 4. In general, such as square proportion might be written as: P = kV2 for some constant k. The relevant law in this case is: P = (1/R)V2 where "R" is the resistance.
HOW CAN you calculate power if you know the voltage and current?
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.
What is the relationship between voltage power and 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
How is power and voltage related?
in ac circuits power,P=VICOS@ @ is the angle between voltage and current. in dc P=VI V is the voltage I is the current. Power (in Watts) is current (A) x voltage (V)
What is P equals VI?
In electricity, P represents power, V represents voltage, and I represents current. Electric power = Voltage * Current. (P = VI)
How do you make voltage?
Power (P) = Voltage (V) x Amperage (I) Written as P=VxI or to find Voltage V=P/I Voltage is measured in Volts (V) Amperage is measured in Amperes (Amps or A) Power is measured in Watts (W)
Why when voltage increases current decreases?
Usually when voltage increases current increases too, but when it happens that current decreases when voltage increase to minimize lose of power. Total power = IV Power loss = I * V(across wire) = I^2 R = (Power / V)^2 R V = potential difference across the wire which is much smaller (you hope) than the total potential difference between the wire and ground. So you lose less power using a very high voltage and a very low current for transmission and then transforming to the voltage you need at the point of delivery.
What is the product of current and voltage?
power in watts
What are electric power?
Power can be found by the following equations depending upon what information you have available. Power = Voltage x Current ; P=VI Power = Current Squared x Resistance ; P=I2R Power = Voltage Squared / Resistance ; P=V2/R
If you have only voltage and current?
If you know the voltage and current then you can solve for the power: P = V*I
What happens to the voltage if the current increases?
Yes, if the resistance remains constant. Power is voltage times current, and current is voltage divided by resistance, so power is voltage squared divided by resistance. In essence, the power increases as the square of the voltage.
