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Current is directly proportional to the applied voltage and inversely proportional to the resistance in the circuit. Short form, resistance goes up current goes down, resistance goes down current goes down.
This answer is incorrect.
First of all, resistance is not affected by a change in voltage or in current. Resistance is only affected by the length, cross-sectional area, and resistivity of the conductor (and, indirectly, by temperature which affects resistivity).
Ohm's Law makes no mention of resistance. It simply states that the current flowing in a circuit is proportional to the applied voltage, providing external factors, such as temperature, remain constant.
Since current is proportional to voltage, it must be equal to a constant times voltage. This constant is called conductance, which is the reciprocal of resistance, so the so-called 'Ohm's Law formula' is usually shown as I = V/R. But it's important to remember that the resistance, R, is a constant and does not change if V or I changes.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoOhms law
AnswerOhm's Law states a relationship between current and voltage. No mention of any resistance, though!
Wiki User
∙ 11y agoVoltage = current times resistance.
This can be taken as a definition of resistance; for many materials, the resistance remains constant over a large range of voltages, so this relationship can be very useful for many calculations.
AnswerOhm's Law merely tells us that, for a limited range of conductors, the current is directly proportional to voltage or, expressed another way, the ratio of voltage to current is a constant. The general relationship between voltage, current, and resistance, which applies to ALL conductors and other devices is not derived from Ohm's Law, but from the definition of the ohm.
Wiki User
∙ 6y agoResistance of a conductor is defined by the specific resistivity, area of cross section and the length of the conductor. R = rL/A, where R is resistance in OHMs, r is specific resistance, L length in mm, A is area of cross section in sq mm
Wiki User
∙ 13y agoResistance = Current x Voltage
This is commonly written R = IV
note: this means (ohm)=(coulomb/second)(volt)
Wiki User
∙ 14y agoThe ratio is 1:1:1
Wiki User
∙ 16y agoOhlms law
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How do you figure out resistance?
Turn off circuit. Then you can use a meter set for resistance, clip onto both ends of the resistor, meter will display the resistance in ohms.If you know the voltage and amperage you can use Ohm's Law: E=IRR=E/IR is resistance, E is voltage, and I is current (amperage)
''Ohm's law is the tendency for material to oppose the flow of electrons''is this true?
No, resistance is the tendency to oppose the flow of electrons. Ohm's Law simply relates resistance, voltage, and current.
Does ohms law state that current equals flow of electrons through a conductor?
No. Ohm's law relates voltage, current and resistance: V=IR. ("I" is the symbol for current.)
What is the relationship between the voltage and the current when the resistance is kept constant?
Ohm's Law: voltage = current * resistance. If resistance is a constant, then voltage is directly proportional to current.
Is there a direct or inverse proportion between voltage and resistance?
voltage is directly proportional to resistance, and the current is inversely proportional to resistance. According to Ohm's Law, current is directly proportional to voltage.
What will happen too amperage if voltage is increased and resistance remains the same?
Ohms Law says Voltage = Current x Resistance. Hence if voltage rises, so will current.
Doubling the resistance in a circuit will increase or decrease amperage?
If voltage remains constant and resistance is increased, the amperage will decrease per Ohm's Law.
How do you decrease voltage in dc without decreasing amperage?
In order to decrease voltage without decreasing amperes you have to also decrease resistance. Ohm's Law: Voltage = current times resistance
How do you figure out resistance?
Turn off circuit. Then you can use a meter set for resistance, clip onto both ends of the resistor, meter will display the resistance in ohms.If you know the voltage and amperage you can use Ohm's Law: E=IRR=E/IR is resistance, E is voltage, and I is current (amperage)
How do you convert DC Voltage to DC Amperage?
You don't convert DC voltage to DC amperage. You get it automaticly when you have a resistance in your circuit. Scroll down to related links and look at "Ohm's law - Wikipedia".
What is the amperage in an electric circuit when the voltage 120 volts and the resistance is 40 ohms?
Ohm's Law states Voltage = Current x Resistance. You rewrite the equation as Current = Volts / Resistance to solve for current.
How do you increase amperage without changing voltage or resistance?
You cannot increase amperage without changing voltage or resistance. Ohm's law states that voltage is current times resistance. You cannot change one alone. Not even changing frequency in a capacitive or inductive circuit will do this, because changing frequency represents a change in reactance, which is effectively a change in resistance.
What is ohm's law and write three forms of ohm's law in a equation?
Ohm's law relates voltage, current, and resistance. Voltage is current times resistance Current is voltage divided by resistance Resistance is voltage divided by current
How is Ohm's Law used?
Ohm's Law relates Voltage, Current, and Resistance. The equation is Voltage = Current times Resistance. Knowing any two, you can figure out the third, and that is one of the principles of basic circuit analysis.
How is Ohm's law useful?
Ohm's Law relates Voltage, Current, and Resistance. The equation is Voltage = Current times Resistance. Knowing any two, you can figure out the third, and that is one of the principles of basic circuit analysis.
How ohm's law is useful?
Ohm's Law relates Voltage, Current, and Resistance. The equation is Voltage = Current times Resistance. Knowing any two, you can figure out the third, and that is one of the principles of basic circuit analysis.
How is ohm's law is useful?
Ohm's Law relates Voltage, Current, and Resistance. The equation is Voltage = Current times Resistance. Knowing any two, you can figure out the third, and that is one of the principles of basic circuit analysis.
