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If you double the voltage in a circuit, the power is quadrupled, assuming the resistance stays the same.

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14y ago
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12y ago

Ohm's Law: Current is voltage divided by resistance.

Doubling both the voltage and the resistance will not change the current.

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12y ago

Assuming the resistance remains constant, doubling the voltage will double the current through the circuit. If your circuit isn't capable of withstanding the increased current, it will fail.

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Q: If you double both the voltage and the resistance in a circuit what would be the effect on the current?
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Continue Learning about Engineering

Will doubling the resistance in a circuit halve the current if voltage is held constant?

If resistance is halved while voltage remains constant, the current will double.


What happens to the current flowing in a circuit if its resistance is doubled?

Using Ohms Law: V = I x R, where V (Voltage), I (Current), and R (Resistance). re-arranging: V/R = I Therefore if you double both the Voltage and the Resistance, the current remains unchanged.Current = Voltage / Resistance. If both resistance and voltage double the current remains the same.


In a circuit is current proportional to resistance?

Ohms law is: I = V / R (current = voltage / resistance)... where if the voltage or resistance changes then the current will change. ... the current and resistance is a inversely proportional linearly relationship ...this means that if the resistance doubles then the current halfs, if the resistance halfs then the current doubles, etc...hope this helps


What is the effect on the current in a wire if both the voltage across it and it's resistance are doubled?

By Ohm's Law, current is voltage divided by resistance, so if you double both the voltage and the resistance, the current would remain the same.


What happens to the time taken for the capacitor to charge and discharge when you increase the resistance in the circuit?

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.

Related questions

What are the two reasons for the current to double in a circuit?

Since current = voltage / resistance, I = V/R, the current in a circuit will double if either the voltage doubles, or the resistance is halved.


Will doubling the resistance in a circuit halve the current if voltage is held constant?

If resistance is halved while voltage remains constant, the current will double.


What happens to the current flowing in a circuit if its resistance is doubled?

Using Ohms Law: V = I x R, where V (Voltage), I (Current), and R (Resistance). re-arranging: V/R = I Therefore if you double both the Voltage and the Resistance, the current remains unchanged.Current = Voltage / Resistance. If both resistance and voltage double the current remains the same.


What happen to current in a circuit if the voltage in not charged but the resistant is double?

In an electrical circuit, if resistance is doubled, EMF (measured in volts) stays constant, and current is halved.


What happens to the current when the voltage is doubled and the resistance is constant?

I = E/R If resistance is constant, then current is directly proportional to voltage. Double the voltage ===> the current will also double.


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.


What would happen to the current in a simple circuit if a bulb with a higher resistance were used?

Ohm's law applies: Current = Voltage / Resistance As such if you double the resistance of the light bulb you end up with half as much current.


In a circuit is current proportional to resistance?

Ohms law is: I = V / R (current = voltage / resistance)... where if the voltage or resistance changes then the current will change. ... the current and resistance is a inversely proportional linearly relationship ...this means that if the resistance doubles then the current halfs, if the resistance halfs then the current doubles, etc...hope this helps


What is the effect on the current in a wire if both the voltage across it and it's resistance are doubled?

By Ohm's Law, current is voltage divided by resistance, so if you double both the voltage and the resistance, the current would remain the same.


The current flowing through an element in a circuit is directly proportional to the applied voltage?

Ohm's law states it is. Double the voltage with the same resistance will double the current. E = IxR. 120 = 10 x 12. 240 = 20 x 12.


Why cant you use a 12 volt battery with a 6 volt globe?

When you double the voltage you double the current and that is what burns the bulb out. Ohm's law states, the current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit. Volts = Amps x Resistance (Ohms) E = I x R.


What is the relationship between current and voltage in a circuit?

V=IRV-voltageI- currentR- resistance offered by the circuit board(can me measured using miltumeter)AnswerThe ratio of voltage to current is called resistance. If this ratio is constant for changes in voltage, then the circuit is described as being 'linear' or 'ohmic', and it obeys Ohm's Law. If this ratio varies for changes in voltage, then the circuit is described as being 'non-linear' or 'non-ohmic', and it does not obey Ohm's Law. Most loads and electronc devices are non-ohmic -that is their resistance varies with changes in voltage- which confirms that Ohm's Law is not a universal law, but one that applies only to certain types of load and, then, under specific conditions.