What is power dependent on physics?
In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity. Power.
What is power definition in physics?
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. A given amount of work can be done by a low-powered motor in a long time or by a high-powered motor in a short time.
Is power time Dependent?
Power can be expressed as P = Work/Change in Time, instead of P = Change in Energy/Change in Time, because the change in energy is basically the work done.
What is the best definition of power in physics?
Power is the rate at which work is done or energy is transferred in a unit of time. Power is increased if work is done faster or energy is transferred in less time.
What is instantaneous power and average power?
The instantaneous power is the power at a given instant. The average power is the power averaged over a cycle or number of cycles. The average ac current delivered to a circuit is zero. Despite this, power is dissipated in the circuit.
What is your definition of 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.
What is impulsive force?
An impulsive force is a force which acts on an object for a short period of time. In a collision that results in a change in the velocity or momentum of one or more the objects involved in the collision, an impulsive force is primarily produced.
What are the three types of power?
Power refers to the ability to have one’s will carried out despite the resistance of others. According to Max Weber, the three types of legitimate authority are traditional, rational-legal, and charismatic.
What is instantaneous electric power?
What is power and power dependence?
power dependence Power is often characterized as ‘zero-sum’. That is, power is something that A has over B, such that if A gains in power B correspondingly loses. However, the notion of power dependence suggests that power is also a relational concept, such that the power of A is dependent on B.
What is the power-dependence theory?
Richard Emerson and Karen Cook conducted the first experimental tests of Emerson’s power-dependence theory in the late 1970s and early 1980s, showing that power use—the asymmetry in exchange benefits between A and B —can be predicted from the structural power relations in exchange networks.
What is a dependent variable in science?
A dependent variable is the variable being tested in a scientific experiment. The dependent variable is “dependent” on the independent variable . As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.
What is power in physics?
Power is defined as the rate at which work is done upon an object. Power is a time-based quantity. Which is related to how fast a job is done. The formula for power is mentioned below.