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V = I * R
V=Voltage (Volts), I=Current (Amps), R=Resistance (Ohms), Z=Impedance(Ohms)
impedance is similar to resistance but pertains to AC circuits only
(voltage across an element ) = (current through the element) * (the element's resistance, or impedance if you are dealing with AC)
"voltage" is the potential or force that pushes electrical current
"current" is referring to the amount of electrons(negatively charged particles) flowing past a fixed point in a given amount of time
"resistance" is an elements opposition to current flow, so an element with a high resistance will allow less current to flow through it than an element with a lower resistance (given they have the same voltage across them)
and by element I mean a component or device not a pure substance
ohms law states that the current flowing through leaniar electrical characteristic conductor is directly proportional to the potential difference applied across the terminals provided the temperature is kept constant.
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∙ 13y ago
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∙ 15y agoLook In the link I will place below.
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Give the formula of state ohms law?
There is no equation for Ohm's Law. Ohm's Law simply tells us that, for ohmic or linear materials, the ratio of voltage to current is a constant.The equation you are, presumably, looking for is derived from the definition of the ohm, not from Ohm's Law, and that is resistance is voltage divided by current.
What is ohm's law expressed as a formula?
Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points, and inversely proportional to the resistance between them
According to ohm's law resistance is equal to voltage divided by?
The equation you are looking for, R = E/I, is derived from the definition of the ohm, not from Ohm's Law. Ohm's Law is properly-called 'Ohm's Law of Constant Proportionality', which states that, for certain (linear) loads, the ratio of voltage to current is constant for changes in voltage. The above equation applies whether Ohm's Law does or does not.
Who formulated OHM'S law?
V=ir
What is linear loads and nonlinear loads?
Linear load : Linear load gives straight line response. Non linear load:Non linear load gives distorted responseAnswerA linear load obeys Ohm's Law, whereas a non-linearload does not. 'Linear loads' are also called 'ohmic' loads, and 'non-linear' loads are also called 'non-ohmic' loads. For a load to obey Ohm's Law, the ratio of its voltage to current MUST remain constant for variations in voltage. This is comparatively rare, so most loads do not obey Ohm's Law. To quote one internationally-acclaimed MIT professor, "Ohm's Law is a fake (law)!"This tells us that Ohm's Law is NOT a universal law, and it's worth querying why it's a considered to be a law at all, and whether there's any point in teaching it. The equation, R = V/I, which is often 'claimed' to represent Ohm's Law actually does not, and is derived from the definition of an ohm, and NOT from Ohm's Law.
Give the formula of state ohms law?
There is no equation for Ohm's Law. Ohm's Law simply tells us that, for ohmic or linear materials, the ratio of voltage to current is a constant.The equation you are, presumably, looking for is derived from the definition of the ohm, not from Ohm's Law, and that is resistance is voltage divided by current.
Is ohm's law an universal law?
Ohm's Law is basically just the definition of resistance. That doesn't make it very "universal", no matter how you choose to define "universal".However, it's very useful for electrical calculations.
What is ohm's law expressed as a formula?
Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points, and inversely proportional to the resistance between them
How does Ohm's law benefit us today?
Ohms's law is the basics for all conductor designings........AnswerOhm's Law hardly benefits us at all. It's not a universal law, and very few electrical materials/circuit components actually obey Ohm's Law. The fundamental equation, R = E/I, is derived from the definition of the ohm, so Ohm's Law hasn't even contributed that to electrical engineering.
According to ohm's law resistance is equal to voltage divided by?
The equation you are looking for, R = E/I, is derived from the definition of the ohm, not from Ohm's Law. Ohm's Law is properly-called 'Ohm's Law of Constant Proportionality', which states that, for certain (linear) loads, the ratio of voltage to current is constant for changes in voltage. The above equation applies whether Ohm's Law does or does not.
What is the Definition for ohms?
Ohm is the unit for electrical resistance. The definition is given by Ohm's Law: resistance = voltage / current; in SI units: ohms = volts / amperes. For example, a resistance of 1 ohm would result in 1 ampere of current for every volt applied.
How are currrent voltage and resistance related by Ohms Law?
They're not! The relationship you describe is derived from the definition of the ohm, not from Ohm's Law. This tells us that resistance is equal to the voltage divided by the current. Ohm's Law merely tells us that the ratio of voltage to current is constant for variations in voltage -which, unfortunately, is not actually true. In other words, Ohm's Law is not true!
What is the relation of current voltage resistance to one another?
Under normal circumstances, the relationship is given by Ohm's lawvoltage = current x resistance.The ratio of voltage to current is called resistance. This is obtained from the definition of the ohm, and not (as so often stated) from Ohm's Law.If the ratio of voltage to current is constant for variations in voltage, then the load obeys Ohm's Law and is called a 'linear' or 'ohmic' load.If the ratio of voltage to current changes for variations in voltage, then the load does NOT obey Ohm's Law, and is called 'non-linear' or 'non-ohmic'. Pure metal conductors ONLY obey Ohm's Law if their temperature is held constant. No semiconductor obeys Ohm's Law.
Why does the relation v equals iR applicable to resistors they do not obey ohms law?
Ohm's LawVoltage = Current x ResistanceResistance is part of Ohm's Law. Not sure why you think there is some violation of Ohm's law as it applies to resistance.AnswerHardly any conductor or electrical component (e.g. diodes, etc.) obeys Ohm's Law. For Ohm's Law to apply, the ratio of voltage to current must remain constant for changes in voltages. In other words, if we were to plot current against voltage, for variations in voltage, then we should end up with a straight-line graph. But most conductors and devices produce curved-line graphs!The reason for this is that Ohm's Law is simply NOT a 'law' in the sense of being 'universal'.The equation, R = E/I, is actually NOT derived from Ohm's Law, but from the definition of the ohm.
Who is the author of ohm's law?
OHM, who else?!
Using Ohm's law what is the formula to find amperage in a circuit?
Take your circuit voltage and the power of the appliances and divide.E is voltage I is amperage and P is power or wattage. P=ExI Example. 3500 watt heater draws ? Amps on 220Volts I=P/E I= 3500w/220v I= 15.9Amps
What is the realtionship among voltage current and resistance in a circuit?
Ohm's Law Voltage = Current x Resistance
