You have it backwards, the resistance controls the current not the current controls the resistance. I = E/R . Your question should read, "If the voltage is constant and the resistance in the circuit is increased what happens to the current?" Say the voltage is 120 volts and the resistance is 30 ohms, I = 120/30 = 4 amps. Now we double the resistance to 60 ohms, then I = 120/60 = 2 amps. So now you can see if you increase the resistance the current drops.
If voltage is a constant and resistance increases, the current will decrease proportionally. To calculate this you can divide voltage by resistance to get current.
Now comes the confusing part, at least for some. The letter "V" stands for volts and is expressed in volts. The letter "R" stands for resistance and is expressed in ohms. The letter "I" stands for current and is expressed in amps. Don't ask why, it just does.
V / R = I
Now for a simple example. If you have a 9 volt battery (V) and connect a 10 ohm resistor (R) from the plus to the minus terminals, you will have 9 divided by 10 or 0.9 amps (I).
Increase your resistor to 20 ohms and you will get 0.45 amps.
Cool eh?
CommentThe symbol for current, 'I', comes from the French word for 'intensity'. In an equation, 'V' represents 'voltage', not volts.
When the current remains constant, an increase in voltage will increase the resistance of the circuit.
Answer
Completely impractical question. None of the factors that affect resistance are mentioned so what you describe cannot happen!
Since Voltage equals Current times Resistance then the voltage increases with an increase in resistance if the current remains constant.
If the resistance increases, the current diminishes. The voltage may drop a little and the multimeter can't read it or can't accuse so little voltage dropping.
If the resistance remains constant then current does not change unless voltage changes
Current will increase.
It is halved. coz voltage=current * resistance
If resistance increases and voltage stays the same, then current decreases. Ohm's Law: Current equals Voltage divided by Resistance.
The total current decreases.According to the Ohm's law the current & the resistance are inversely proportional so when we put a load in series with the existing load, the resistance of the circuit increases therefor the current decreases.
It increases. The time constant of a simple RC circuit is RC, resistance times capacitance. That is the length of time it will take for the capacitor voltage to reach about 63% of a delta step change. Ratio-metrically, if you double the resistance, you will double the charge or discharge time.
With a constant voltage and increase in wire length will increase the end to end resistance and therefore the current will decrease.
Based on the simplest Electrical Equation V = I * R,(reads: voltage equals current multiplied by resistance)then, rearranged I = V / R .As resistance decreases, current flow proportionately increases
it increases
It is halved. coz voltage=current * resistance
I = E/R If resistance is constant, then current is directly proportional to voltage. Double the voltage ===> the current will also double.
"Ohms Law" defines resistance (R) as the the ratio of voltage (V) to current (I).R = V/IIf you move those variables around, you can get the formula:I = V/RSo you can see that when resistance increases, current flow will decrease.CommentResistance is most definitely not defined as 'the ratio of voltage to current', although that ratio may tell you what it happens to be.Resistance isn't a variable in the Ohm's Law equation. It is a constant because it is unaffected by either current or resistance.
increase
resistance increases
Yes, if the resistance remains constant. Power is voltage times current, and current is voltage divided by resistance, so power is voltage squared divided by resistance. In essence, the power increases as the square of the voltage.
If resistance increases and voltage stays the same, then current decreases. Ohm's Law: Current equals Voltage divided by Resistance.
current decreases and resistance increases
Since resistance is the ratio of voltage to current, we can say that halving the resistance will result in twice the current.
As the resistance is reduced across the same voltage, the current increases.