What is the relationship between current voltage and resistance?

Answer 1

The first, and perhaps most important, relationship between current, voltage, and resistance is called Ohm's Law, discovered by Georg Simon Ohm and published in his 1827 paper, The Galvanic Circuit Investigated Mathematically. Ohm's principal discovery was that the amount of electric current through a metal conductor in a circuit is directly proportional to the voltage impressed across it, for any given temperature. Ohm expressed his discovery in the form of a simple equation, describing how voltage, current, and resistance interrelate:

E = IR

In this algebraic expression, voltage (E) is equal to current (I) multiplied by resistance (R). Using algebra techniques, we can manipulate this equation into two variations, solving for I and for R, respectively: I = E/R and R = E/I.

answer discovered that relation only after VOLTA establish the voltage relationship and AMPERE discovered the current relationship. and of course WATTS establish the power.521

R=V

Resistance

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Answer 2

The ratio of voltage (U) to current (I) is called 'resistance', i.e: R = U/I. If this ratio is constant for variations in voltage, then the circuit is said to be 'linear' or 'ohmic', and obeys Ohm's Law. If the ratio changes for variations in voltage, then the circuit is said to be 'non-linear' or 'non-ohmic', and the circuit does not obey Ohm's Law. As most circuits are non-linear, it is clear that Ohm's Law is not a universal law.

Answer 3

Ohms Law. I = V / R

where V is the potential difference measured across the resistance in units of volts; I is the current through the resistance in units of amperes and R is the resistanceof the conductor in units of ohms.

Alternative Answer

The ratio of voltage (V) to current (I) is called 'resistance', i.e: R = V/I. If this ratio is constant for variations in voltage, then the circuit is said to be 'linear' or 'ohmic', and obeys Ohm's Law. If the ratio changes for variations in voltage, then the circuit is said to be 'non-linear' or 'non-ohmic', and the circuit does not obey Ohm's Law. As most circuits are non-linear, it is clear that Ohm's Law is not a universal law.

Answer 4

The relationship between current, voltage, and resistance is described by Ohm's Law, which states that the current flowing through a circuit is directly proportional to the voltage across the circuit and inversely proportional to the resistance of the circuit. Mathematically, the relationship is expressed as I = V/R, where I is the current, V is the voltage, and R is the resistance.