0
How will a current change if the resistance of a circuit remain constant while the voltage across the circuit decreases to half its original value?
Wiki User
∙ 12y ago
Voltage = resistance X current abbreviated,
V = C * R
If you halve the voltage of the current, then the other side of the equation must also be halved; therefore, you get:
(1/2)V=(1/2)(C*R)
which is the same as:
(1/2)V=(1/2)(C)(R)
which means that either the current or the resistance must be halved as well, and because the resistance stays the same, then the current is halved.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoIt will be half its original value I= V/R
the power dissipated by the circuit will be reduced to a quarter of its original value.
Add your answer:
Earn +20 pts
If voltage remains constant and resistance decreases current flow?
the current will increase because of a lower level of resistance , hence more current will flow- easily
How you increase current by keeping voltage constant?
If you are referring to a simple circuit, you could add resistance throughout it. Increased resistance means decreased current flow yet the same voltage.
When one load is removed from a parallel circuit the total resistance decreases?
No, the total resistance increases.
When resistance decreases what happens to current?
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
If the voltage applied to a circuit remains constant and the resistance in the circuit is increased the current will?
V = IR Where, V = voltage I = current R = resistance Thus if resistance is increased with constant voltage current will decrease
If the resistance decreases in a circuit when the voltage remains constant the current will?
Current will increase
What increases when the resistance of an electrical circuit decreases?
Current increases if the voltage remains constant.
As the DC voltage applied to a circuit decreases what will the current do?
In a passive circuit, the current will decrease. In an active industrial circuit, it will usually decrease. In a theoretic manner - it is an unknown.
If voltage remains constant and resistance decreases current flow?
the current will increase because of a lower level of resistance , hence more current will flow- easily
What is happening if energy input remains constant and voltage remains the same in a circuit but the current decreases?
The resistance is decreasing
As the resistance in a series circuit is decreased the amount of current in the circuit increases or decreases?
Increases the total resistance
In a series circuit each device that is added to the circuit decreases the?
Ohm's Law answers your question. Voltage = Current x Resistance. In a series circuit you are in effect adding resistance. If the Voltage remains constant then the answer is obvious looking at the equation above.
In a series circuit each device that is added to circuit decreases the?
Ohm's Law answers your question. Voltage = Current x Resistance. In a series circuit you are in effect adding resistance. If the Voltage remains constant then the answer is obvious looking at the equation above.
Why isn't resistance constant?
If measuring resistance of materials or resistors by themselves(not soldered into a circuit board) resistance is constant. If measuring resistance of a circuit then it could fluctuate with the components functioning in the circuit.
How you increase current by keeping voltage constant?
If you are referring to a simple circuit, you could add resistance throughout it. Increased resistance means decreased current flow yet the same voltage.
In series circuit each device that's added to the circuit decreases the?
Ohm's Law answers your question. Voltage = Current x Resistance. In a series circuit you are in effect adding resistance. If the Voltage remains constant then the answer is obvious looking at the equation above.
When current remains constant and resistance increases the voltage in the circuit will?
The physical equation governing voltage is V = IR, where V is voltage, I is current, and R is resistance. If V remains constant while R is increased, I or current must decrease. Increasing the resistance in a circuit is simply introducing a material that further resists or impedes the electron flow (current), thus current decreases.
