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current change with resistance as, anything which opposes flow of current is called resistor is circuit, now we use battery to give potential across the circuit, potential just ensure the continuous flow of charge from higher to lower potential (water flows from high PE to low PE), while resistance opposes the flow of charge and thereby effecting the value of current, it's practically found that more is the resistance, less is the current flowing through resistance, this is indirectly observed from ohm law V=IR.

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12y ago
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13y ago

The current will increase as the potential difference increases.

This also means that the current will decrease as the potential difference across the resistor decreases.

This means that the relationship is directly proportional

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14y ago

In a true series circuit with known current, no, because Kirchoff's Current Law says that the current at each point in a series circuit is the same. The resistance, however, does affect the current. Ohms Law: Volts = Amps * Ohms. So, given a constant voltage, added resistance would increase the voltage drop across the resistor, asymptotically to the limit of the available votage.

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10y ago

If the resistance of the circuit remains same then current increases with increase in voltage.

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Ali Hassnain Ansari

Lvl 3
1y ago

If the resistance is low voltages are also low but there current will increases

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Q: How does changing resistance affect voltage and current?
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Related questions

How does the changing the battery voltage affect the current?

If voltage varies then current varies with constant resistance.


How does the voltage applied to a circuit affect the current flowing through the wire?

Voltage is equal to the Current multiplied by the Resistance.Without changing the resistance, increasing the applied voltage in a circuit will increase current flow. There is a simple, direct relationship between voltage and current. Double the voltage, twice the current will flow. Triple the voltage, and the current will triple. As voltage (E) equals current (I) times resistance (R), when resistance is fixed, what happens to voltage will happen to current.


How does loading effect affect flow of current?

Ohm's Law says that Voltage = Current x Resistance (Load). Therefore Current = Voltage / Resistance and as resistance decreases current increases and as resistance increases current decreases.


Reducing voltage in a circuit does not affect resistance?

Reducing voltage in a circuit does not directly affect resistance. It affects current. Resistance is an independent variable.Ohm's law: voltage equals current times resistance.However, reducing voltage and/or current does reduce power, which reduces temperature, which can change resistance because resistance is usually affected to some degree by temperature.


How can electric current be changed in Omh's Law?

Ohm's Law: V = IR Solving for current: I = V/R To affect the current, you can either change the voltage (more voltage --> more current), or the resistance (more resistance --> less current).


What does power divided by speed equal?

Ohm so correctly said: Voltage divided by current equals resistance. Voltage divided by current will tell you the value of a circuit's resistance. But resistance is not affected by either voltage or current. It is determined by the length, cross-sectional area, and resistivity (type of conducting material) of the conductor. Resistivity is, in turn, affected by temperature. So voltage divided by current tells you what the resistance happens to be - changes in voltage or current do not affect resistance.


Resistance of a copper conductor will decrease with an increase of applied voltage?

Resistance is affected by the length, cross-sectional area, and resistivity of the conductor. The resistivity, in turn, is affected by temperature. So only by changing one of these four factors will the resistance of a conductor change. Changing voltage will have no affect upon the conductor's resistance.


How does internal resistance affect operation of a cell or battery?

It causes the battery's voltage to drop when a current is drawn from it.


What causes resistance to increase or decrease?

Voltage, if voltage is increased resistance in the circuit increasesAnswerResistance is determined by the length, cross-sectional area, and resistivity of a conductor. Resistivity is, in turn, affected by temperature -so temperature indirectly affects resistance.These are the only factors that affect resistance. Voltage and current have no direct effect whatsoever on resistance. Current can affect resistance indirectly if it causes the conductor's temperature to increase.For AC circuits, 'skin effect', due to frequency, causes the current to flow towards the surface of a conductor which acts to reduce the effective cross-sectional area of that conductor. So, frequency can also indirectly affect resistance.


Why is it capacitance does not affect current in a Direct Current circuit?

Capacitors resist a change in voltage, proportional to current and inversely proportional to capacitance. In a DC circuit, the voltage is not changing. Therefore, after equilibrium is reached, there is no current flowing through the capacitor.


Describe how a change in resistance would affect the current in a circuit?

As long as the voltage between the ends of the circuit remains constant, the current through the circuit is inversely proportional to the total effective resistance of the circuit.


Can a circuit be set up so that the voltage and current are manually adjusted independently using a 12V 25A DC power supply and fixed electrolysis device ED or is the current determined by the ED?

Using Ohms law, (Voltage = current x resistance) it is seen that there is a relationship between the voltage and current that relies on the resistance of a circuit. In simple terms, changing the voltage will cause the same proportional change in current and therefore one cannot be adjusted without the other. To change the current without changing voltage requires that the resistance of the circuit changes. In electrolysis, the two obvious ways to change resistance will be to change the concentration of the solution or change the surface area of the electrodes. There are other factors that can have an effect but as part of a research study, these variables will no doubt be recorded separately. Another variable to consider is power. Power is the product of voltage x current. By setting and monitoring both voltage and current at the electrodes a constant power can be obtained. Varying power will certainly change the results of the experiment. It might be useful to change other variable such as concentration of solution to see how the same power at, for example, a different current, affect the results.