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In a complex circuit with various elements (resistors, capacitors etc.) and one battery, the various circut elements contribute to draw a certain amount of current "I"from the battery at some terminal voltage "V". The "equivalent" resistance of the various circuit elements is that resistance "R" which will draw the same current , at the same terminal voltage, as the complex circuit. So to find "R" you simply imagine replacing the complex circuit with "R" by attaching "R" across the terminals of the battery and use Ohms law to find "R" , demanding "I" and "V" are the same. So then R = V/I.

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Q: What is meant by calculate the equivalent resistance of the circuit from the measured potential difference across the battery and the current through the battery is there a formula for this?
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Related questions

Calculate the resistance when current 0.24 and potential difference 4.0 A?

I don't no


Is potential difference directly or inversely proportional to resistance?

Potential Difference (V) across two resistors is directly proportional to the resistance (R) as greater the potential difference, greater is the resistance and vice versa.


Does potential difference change with change in resistance?

Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.


One way to make current is to use a what?

You can apply a potential difference across a wire to cause a current to flow through. Ohm's Law allows you to calculate the amount of current based on the voltage supplied and the resistance of the circuit. I = current V = voltage or potential difference R = resistance I = V/R


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 is electrical resistance calculated?

Resistance (Ohms) = Potential Difference (Voltage) / Current (Amps)


Current is proportional to the potential difference and inversely proportional to its?

Current is proportional to the potential difference and inversely proportional to resistance. Ohm's law: Current equals voltage divided by resistance


What term describes potential difference in science?

i think its resistance


How is resistance calculated?

You can measure it, but you can't calculate it. That's why the resistance of a resistor is always printed on it, either in numbers or in color bands. Without that marking, the resistor is pretty useless. If it accidentally missed being marked during manufacture, it would be either discarded, or sold surplus for bubkes.


The ratio of the potential difference across a metallic conductor to the current in the conductor is known as?

That is the resistance, measured in ohms.


What conditions are necessary for a current to be present in a circuit?

some resistance and potential difference


What does the slope of a graph potential difference vs current represent?

resistance of a material