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Resistance 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
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Is resistance an opposition to electrical power and voltage is electrical pressure?
Resistance is an opposition to electrical currrent flow, which is more formally coulombs per second, or amperes. Voltage is electrical pressure, more formally joules per coulomb. When you multiply volts and amperes you get joules per second, or watts.
What is the resistance of a 230v and 10 amp circuit?
You can't really convert that. If you multiply volts and amperes, you get watts, a unit of power. Watts is equivalent to joules/second. If you multiply volts x amperes x seconds, you get joules.
Is voltage the measure of the amount of electron flow in a circuit?
No. Current is the measure of the amount of electron flow in a circuit. Current is measured in amperes, or coulombs (6.242 x 1018 electrons) passing a point in a circuit in one second. Voltage is electrical potential energy, measured in volts, or joules per coulomb. Current and voltage are defined in such a way that current times voltage is watts, or joules per second. Further, the ohm (resistance) is defined such that one volt will produce one ampere through one ohm, creating one watt.
Why do you use ohms as a measurement for resistors?
reactance and resistance are both measured in ohms because both are opposition to current flow. the only difference is resistance is the real component while reactance is the imaginary component.
True or false current is the voltage multiplied by the resistance?
False. Voltage (E) is the potential difference, i.e. electrical potential, in joules per coulomb. Current (I), on the other hand, is electrical charge flow, in coulombs per second. The two units are not related except through a common term such as resistance (R). E = IR I = E/R R = E/I
What Equation is used to determine power loss?
Power (Joules) = the square root of the voltage squared divided by the resistance
Is resistance an opposition to electrical power and voltage is electrical pressure?
Resistance is an opposition to electrical currrent flow, which is more formally coulombs per second, or amperes. Voltage is electrical pressure, more formally joules per coulomb. When you multiply volts and amperes you get joules per second, or watts.
Is resistance an opposite to electrical power and voltage is electrical pressure?
Resistance is an opposition to electrical currrent flow, which is more formally coulombs per second, or amperes. Voltage is electrical pressure, more formally joules per coulomb. When you multiply volts and amperes you get joules per second, or watts.
What are the variables when measuring voltage?
Voltage is measured in joules per Coulomb. If you're referring to calculating voltage from a circuit or anything of the like, you're probably looking for Ohm's Law, which states that resistance (in ohms) is equal to voltage divided by current (in amperes). From this relationship, we can determine that voltage = current * resistance.
Does voltage basically measure how well a charge can flow through a less conductive material?
Voltage is electrical pressure, energy per charge, specifically joules per coulomb. The less conductive material represents more resistance. Resistance is the (in)ability to allow current flow, coulombs per second, or amperes. Since Ohm's law states that voltage is current times resistance, or resistance is voltage divided by current, we can say that resistance is joules per coulomb divided by coulombs per second, which in reduced terms is joules-seconds per coulomb squared. Its a matter of perspective, whether one considers voltage or resistance to be the "measure" of how well a charge can flow thorugh a less conductive material, but, to answer your question, yes, voltage measures how well a charge can flow through a less conductive material, because, in order to maintain constant current flow while increasing resistance, you have to increase voltage.
What is the Unit of resistance measured in?
Resistance is measured in ohms.By Ohm's law, resistance is voltage divided by current, which is (joules per coulomb) divided by (coulombs per second), which is joules-seconds divided by coulombs squared. (It is easier to just say ohms.)
When a battery does 24 joules of work on 10 Coulombs of charge the voltage it supplies is?
2.4 v
If you use 10 joules of work to push 1 coulomb of charge into an electric field its voltage with respect to its starting position is?
10 voltage
What is the resistance of a 230v and 10 amp circuit?
You can't really convert that. If you multiply volts and amperes, you get watts, a unit of power. Watts is equivalent to joules/second. If you multiply volts x amperes x seconds, you get joules.
What is the 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)
What is a relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
