0
What happens to the current flowing in a circuit if its resistance is doubled?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoOhm's Law: Current is voltage divided by resistance, so doubling voltage while holding resistance constant will double current.
Not asked, but answered for completeness sake; since power is voltage times current, doubling the voltage while holding the resistance constant will quadruple the power.
Wiki User
∙ 14y agoSince V=I*R
R=V/I
IF R=2V/I, R is twice as big
Wiki User
∙ 13y agothe question has limited information, if circuit is single resistsnce circuit than voltage will remain same as supply even if we change the resistence.
Wiki User
∙ 11y agoProviding the voltage remains constant, doubling a circuit's resistance will halve the amount of current.
Wiki User
∙ 9y agoIf current doubles, the power dissipated by a resistor quadruples.
Wiki User
∙ 13y agoIf the voltage remains constant then the current is reduced by 1/2.
Wiki User
∙ 15y agoambot
Add your answer:
Earn +20 pts
What is infinite resistance in a circuit?
It isn't. If you're using superposition, you open circuit current sources and short voltage sources; this is because the current source declares the current that will be flowing through that branch. Both current and voltage sources have a finite internal resistance.
What happens when resistors are interconnected in a circuit?
The net resistance can be found out using the algebraic sums f series and parallel connections. When there is no current flowing in the circuit the net resistance is infinite.
When the resistance in an electrical circuit increases and the voltage does not change the current flowing in the circuit?
Here is the formula you use. I = E/R. I = amperage, E = volts, R = resistance in ohms.
How do you work out the current in a circuit?
we can calculate the current in a commmon electrical circuit by this formulae i.e,I=V\R where i is the current flowing in the conductor, R is resistance , V is the voltage.. THE FORMULA IS CORRECT but the term conductor does not suffice an explanation since a conductor is low in resistance R= resistance not conduction.
What is the ability to regulate the amount of charge flowing in a circuit?
Resistance
When is the current flowing in a circuit said to be very small?
When the current flowing in a circuit is very small the resistance will be very high.
What is the resistance of the circuit if the voltage is 230 volts and the current flowing is 5 amps?
The resistance of the circuit will be 46 ohms
What is resistance do in a circuit?
lowers the amt of electrical current flowing through it.
What is the affect of a series circuit on current?
by adding the the resistances in series the total resistance of the circuit increses and thus the crunt flowing in the circuit decrese. Ans 2 . the current in series circuit of constant resistance will always be the same . It will not effect the current .
Why does resistance increase in a series circuit?
Depends - in the real world as a resistor gets hotter (current flowing through it) its resistance increases.
When does the current flowing through two different arms in a circuit carry same current?
With the same voltage and resistance the current will be the same value.
What is infinite resistance in a circuit?
It isn't. If you're using superposition, you open circuit current sources and short voltage sources; this is because the current source declares the current that will be flowing through that branch. Both current and voltage sources have a finite internal resistance.
What happens when resistors are interconnected in a circuit?
The net resistance can be found out using the algebraic sums f series and parallel connections. When there is no current flowing in the circuit the net resistance is infinite.
If the resistance of an electric current is 12 ohms and the voltage in the current is 60 V the current flowing through the circuit is?
..using the formula Voltage(V)=Current(I) * Resistance(R) .. we can get the result ...current will be 5 Ampere
What does the amount of current flowing in each branch of a parallel circuit depend on?
It depends on the resistance (or impedance) of that branch alone.
Why shunt resistance must be small in ammeter?
An ammeter has to measure to current flowing through the circuit. Resistance offers an obstruction to the current flow. So, if the resistance of an ammeter is large , the current measured by the ammeter will be quite less as compared to the actual amount of current flowing through the circuit which is undesirable. If ammeter has zero resistance , then it will give the exact value of current. But this is not practically possible because every material has some value of internal resistance which we can't control. For this reason , ammeter must have small resistance
What is a circuit called if its operating and the current is flowing?
This is called a closed circuit. If current was not flowing, it would be open.
