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In electronics, R or resistance is calculated by dividing the voltage by the current, or I/E

Here's a good Ohms law chart; http://www.the12volt.com/ohm/ohmslaw.asp

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Q: How do you calculate the resistance of R?
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How do you calculate contact resistance?

Resistance is resistance , no matter if it is contact resistance or any other resistance. And formula is R = V / I.


How do you calculate current?

to fine I (current) when you have R (resistance) and V (voltage) you use the formula: I = V / R


How do we calculate?

V = I x R V = voltage, I = Current, R = Resistance or it can be calculate like this V = P / I V = Voltage, P = Electric Power, I = Current


What quantities are needed to calculate an object's resistance?

To calculate an object's resistance, you would need to know the material's resistivity, its length, cross-sectional area, and temperature (if it's a variable). Using these values, you can apply the formula R = ρ * (L/A) to calculate the resistance, where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area.


Calculate the resistance in a circuit in which a 9 volt batteriyproduces 3 ampheres?

V=IR so, R=V/I or resistance = Voltage / Amps Therefore, the resistance (R) = 9 volts / 3 Amps answer: 3 Ohms


How do you Calculate the voltage of a battery if the resistance is 20hms and the current is 0.35 amperes?

Use Ohm's law. V = I * R where V is voltage in volts, I is current in amperes, and R is resistance in ohms.


What is the dimensional formula for current?

One way to calculate current is using ohms law; current equals voltage divided by resistance or: I=V/R Where I is current, V is voltage and R is resistance.


How do you mesure resistance in a wire?

The unit of resistance is the Ohm, and by applying a small voltage to your wire, and measuring the resultant current, you may calculate the resistance.From the formula I = E/R, where R = resistance in Ohms, E is the voltage in volts, and I is the current in amperes.


How do you calculate current required?

By Ohm's Law.... Voltage equals Current times Resistance (V=I*R) So if given the voltage and resistance of a system and applying algebra I=V/R .


How can calculate resistance for negative dc voltage?

Resistance calculations are the same no matter what the polarity of applied voltage. R=E/I Resistance (in ohms) = Voltage (in volts) divided by Current (in amperes)


How do you calculate current flow?

Current flow can be calculated using Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R), represented by the formula I = V/R. By measuring the voltage across a circuit and knowing the resistance, you can calculate the current flowing through it.