What Is Power Example?

How do you find minimum power?

Use the formula for power: Power = Voltage x Current, or P = VI.

If you are trying to calculate the minimum load and you happen to only know the power and voltage ratings of your power supply, you can use the formula P = V2/R, which can become R = V2/P..

Can power be negative?

The sign of power is just a matter of definition. Energy can increase or decrease, but the energy itself cannot be negative. … As you said, power is just the time rate of change of energy, so it can be negative. But energy is only positive.

How do you calculate total power?

Power can also be calculated using either P = IV or P=V2R P = V 2 R , where V is the voltage drop across the resistor (not the full voltage of the source). The same values will be obtained.

What is the power in science?

Power, in science and engineering, time rate of doing work or delivering energy, expressible as the amount of work done W, or energy transferred, divided by the time interval t—or W/t.

What is power formula?

or. P = W / t. The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time. Thus, a Watt is equivalent to a Joule/second.

What type of word is power?

noun. ability to do or act; capability of doing or accomplishing something. political or national strength: the balance of power in Europe. great or marked ability to do or act; strength; might; force.

What is the unit of power?

WattPower/SI units

What is another word for power?

Some common synonyms of power are authority, command, control, dominion, jurisdiction, and sway. While all these words mean “the right to govern or rule or determine,” power implies possession of ability to wield force, authority, or influence.

What is power according to the Bible?

Power in the Bible has deeper meaning than we can imagine. It’s also frequently used in the book as description of strength of mind, moral qualities of a person, power of his/her faith and so on. … It means that this person or God has some inner strength that does not depend on outward things.

What is the definition of the power?

1 : possession of control, authority, or influence over others. 2 : a nation that has influence among other nations a foreign power. 3 : the ability to act or produce an effect It’s in your power to change things. 4 : the right to do something the president’s powers. 5 : physical might : strength The wind grew in power …

What is power very short answer?

Power is defined as the time rate at which work is done or energy is transferred by it. → Another popular unit of power are kilowatt and horsepower.

How do you find power?

Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in a unit called the horsepower.

What is the work of power?

Also, when work is done, an equal amount of energy is consumed. Thus, power is also defined as the rate at which energy is consumed or utilised. The S.I unit of power is watt (W). One watt is the power of an appliance which does work at the rate of 1 joule per second.

What is power in simple words?

Power is defined as the ability to act or have influence over others. An example of power is the strength needed to run five miles. An example of power is the authority a local government has to collect taxes.

Is Power same as energy?

Power is the rate at which energy is transferred. It is not energy but is often confused with energy. The watt is the most commonly used unit of measure for power.

Why is it important to have power?

Power is the capacity to cause change, produce effects on others or potentially influence others (PSU WC, L. … 7.). Power is the function of a relationship because it belongs not only to the leader, but also to the followers and the situation.

How can I increase my power?

5 Exercises to increase PowerAdd balance exercises. … Leg Press. … Medicine Ball Squat Throws. … Squat Jump. … Barbell Curl.

What is a power in math?

An expression that represents repeated multiplication of the same factor is called a power. The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor.

What is a sentence for power?

Power sentence examples. His phone was destroyed and his power drained. Quinn handles the power and Howie is our focus. Alex was doing everything in his power to provide her with all the experiences of a natural mother.

What is the difference between work and power?

Work is defined as the process of energy transfer to the motion of an object through the application of force. Power is defined as the amount of energy transferred in unit time. … The SI unit of power is the watt.