Power And Resistance Relation

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Power and resistance relation. This law also implies that if a voltage of v volt is applied to a resistance of r ohm then the current is i ampere. Power and resistance where there is power there is resistance and yet or rather consequently this resistance is never in a position of exteriority in relation to power foucault 1978. According to french and raven power must be distinguished from influence in the following way. The amount of resistance created by the load restricts the amount of current and inversely.

Resistance of an object is neither energy spent or a period of time. In a now classic study 1959 social psychologists john r. The relation between power and resistance is proportional. That is the current voltage and resistance between two points are always related to each other.

So power consists of two things heat created or energy spent and time. Power is equal to the voltage across a circuit element multiplied by the current flowing through it the unit for power is the watt w which is equal to a joule per second this relation can be found from the formula for power the power used or dissipated by a resistor can be found using the formula v ir. In terms of a conceptual understanding the amount of power that can be transferred across a load or a resistance is directly affected by the resistance. Sprinting requires 6 times more power even though the same amount of work has been done.

Resistance is the opposition offered against the flow of electrons. French and bertram raven developed a schema of sources of power by which to analyse how power plays work or fail to work in a specific relationship. A light bulb filament and the wires connecting it to a 12 v battery altogether have a resistance of 5 ω. All right the first relationship is.

Ohm s law example 1. The relation between power and resistance can be mathematically expressed in two ways as follows. So in and of itself resistance has no relationship with work or with time interval. 1 p v i meaning power equals to voltage which is denoted by v multiplied by current i now the next relation can be derived from the first formula formula itself.

2 p v 2 r meaning power equals to square of the voltage which is denoted by v 2 divided by the resistance which is.