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Many people find the following analogy useful. Instead of a wire, think of a garden hose. Instead of current, think of water flowing through the hose. Instead of voltage, think of water pressure. And instead of resistance, think of either a crimp in the hose or a narrow section of hose that restricts water flow. After you get your brain around that idea, consider Ohm's Law, which is the most fundamental rule in the study of electricity. Ohm's Law is simply: V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law can be stated in two other ways: I = V/R and R = V/I.
Wiki User
∙ 17y ago
Wiki User
∙ 12y agoResistance is ability of substance to oppose the electron flowing through itself. This oppostd energy will be lost in the form of heat. R'l b constant until temp n presr constant. Voltage n currents r parameters of applied input power(el' energy). V*I=P voltage makes this able to draw current as per ohms law. We r al doing this to draw current for diffent applications(load).
Wiki User
∙ 12y agoA multimeter.
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How can you determine the resistance of a current?
Voltage = Current x Resistance giving us Current = Voltage / Resistance i.e. Voltage divided by resistance
How are voltage resistance and current related?
Current, voltage and resistance are related by the Ohm's law formula which states that current is directly proportional to the applied voltage and inversely proportional to the resistance at a constant temperature. Stated mathematically: I = E/R where I = current in amperes, abbreviated to A E = voltage in volts, abbreviated to V R = resistance in ohms, usually signified by the Greek omega Ω
What happens to the current in a device if the resistance of the device increases and the voltage difference stays the same?
If resistance increases and voltage stays the same, then current decreases. Ohm's Law: Current equals Voltage divided by Resistance.
If the resistance in a circuit is doubled while the voltage remains the constant the current is?
It is halved. coz voltage=current * resistance
What is the realtionship among voltage current and resistance in a circuit?
Ohm's Law Voltage = Current x Resistance
What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is a relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is the relationship among voltage circuit and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
How can you determine the resistance of a current?
Voltage = Current x Resistance giving us Current = Voltage / Resistance i.e. Voltage divided by resistance
Voltage muiltiplied by resistance measures to current?
No. Voltage divided by resistance is equal to current.
How do you compute for voltage if current and resistance is given?
Voltage = Current * Resistance (Ohm's law)
How does voltage change in relation to current assuming that resistance remains constant?
Ohm's Law: voltage = current * resistance. If resistance is a constant, then voltage is directly proportional to current.
What are the mathamatical relationships in Ohm's Law in AC circuits?
Ohm's Law Voltage = Current x Resistance Current = Voltage divided by Resistance Resistance = Voltage divided by Current
How do you find the current if you have the resistance but not the voltage?
The current will be zero if there is no voltage.
How are voltage resistance and current related?
Current, voltage and resistance are related by the Ohm's law formula which states that current is directly proportional to the applied voltage and inversely proportional to the resistance at a constant temperature. Stated mathematically: I = E/R where I = current in amperes, abbreviated to A E = voltage in volts, abbreviated to V R = resistance in ohms, usually signified by the Greek omega Ω
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.
According to Ohm's Law how is voltage related to resistance and current?
1). Voltage = (resistance) x (current)2). Current = (voltage) / (resistance)3). Resistance = (voltage) / (current)I think #2 is Ohm's original statement, but any one of these can be massaged algebraicallyin order to derive the other two.
