How does resistance affect the current in a circuit?
Resistance decreases the amount of current in a circuit, because it opposes current. Also, the relationship can be shown mathematically:
Current=Voltage/Resistance, resistance is divided into the voltage, creating a smaller number which is the value for current.
in a parallel circuit resistance decreases increasing the current. Read More
Since resistance is the ratio of voltage to current, if the voltage is constant then increasing the resistance will result in a reduction in current. Read More
i forgot sorry Read More
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. Read More
Yes, additional resistors affect current in a series circuit by increasing the total resistance, which decreases the total current. Read More
1 What is the effect caused by the ammeter resistance when an ammeter is inserted into a circuit to measure the current?
An ammeter has a finite resistance which is inserted in series with the rest of the circuit, increasing the total resistance and decreasing the current. A good ammeter has a very low resistance, so it shouldn't affect the circuit noticeably. Read More
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 . Read More
Ohm's law states that the current is directly proportional to the applied EMF (voltage) and inversely proportional to the resistance of a circuit. Read More
How does the loading effect of a voltmeter in a low-resistance circuit compare to the loading effect in a high-resistance circuit?
The voltmeter has an internal resistance, which should be as high as possible. As this resistance draws current from the circuit under test, it will affect circuit operation. This is more pronounced in a high impedance circuit because the current drawn flows through higher resistances. Read More
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current. Read More
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. Read More
If you add another resistor or just increase the resistance the current will decrease. I think the statement you are talking about means that whatever the current is in the series circuit it will be the same everywhere in that circuit, on both sides of the resistance. The resistance lowers the current in the entire circuit, not just after the resistance. Read More
In an electrical circuit, if total resistance in the circuit is increased, then the amount of current in the circuit decreased. Read More
The ammeter does affect the flow of current in a circuit, however, the resistance of the ammeter is so small in comparison to the circuit that the effect is negligible. It is connected in series. Read More
When you add resistance to a circuit, current goes down. Ohm's Law: current = voltage divided by resistance. Read More
the current flowing in the circuit can be reduced by simply adding a shunt resistance in parallel with the circuit , the shunt resistance must have much lower value than the resistance of the circuit Read More
a circuit with no resistance or zero resistance can be considered as open circuit in which the current is zero. without resistance the circuit just becomes open () Read More
The amount of current in a circuit can what by increasing the amount of resistance present in the circuit?
No it cant. Voltage = Current x Resistance. So at constant Voltage if the Resistance is increased, Current will reduce Read More
The length of a wire affect resistance because if a long wire is used in an electrical connection.the resistance to be used in driving current round the circuit will be used in overcoming resistance of the lenghty wire. Read More
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. Read More
In an electric circuit, ratio of current and voltage is constant which is known as the resistance of the circuit. If voltage or current is to be changed the resistance has to be changed. You cannot keep an invariable resistance in the circuit and increase current while keeping voltage as constant.Hence to vary the voltage or current in a circuit different equipments like rheostat,potentiometer are used. Read More
Increasing resistance in a series circuit would decrease current. Read More
V = I * R or I = ( V / R ) I = current (amps) V = Voltage R = Resistance The current in a circuit depends on the applied voltage and the resistance of the circuit. Read More
In a circuit , current is inversely proportional to the resistance. Read More
The resistance of a circuit is the total opposition offered to the flow of electric current. Read More
yes, The current flowing in a series circuit is given by the applied voltage divided by it's total resistance offered by the circuit. hence if resistance of the circuit is changed, then total circuit resistance will change, so current will change. Read More
If the resistance is doubled, the current will be diminished, if the resistance is halved, the current will be increased. Read More
Current is usually very high in a short circuit because the short circuit usually represents a low resistance path for current to flow. By Ohm's Law, current is voltage divided by resistance, and when resistance is very low, current is very high. Read More
The reduction of voltage or the increase of resistance will reduce the current in a circuit. Read More
Resistance is generally used to control the flow of amount of current in the circuit. Read More
How will resistance change when voltage increases in an electric circuit if the current remains constant?
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! Read More
Since current = voltage / resistance, I = V/R, the current in a circuit will double if either the voltage doubles, or the resistance is halved. Read More
Resistance of the circuit = (voltage across the circuit) divided by (current through the circuit) Read More
resistance is the opposition to the flow of an electric current, therefore the current will decrease as the resistance increases. Resistance also creates heat. This is how the light globes in a circuit light up. Read More
Current equals voltage divided by resistance in a DC circuit, or I=V/R (A similar relationship applies to AC.) The "original" circuit has the resistance of the wire plus the resistance of the load. The short circuit only has the resistance of the wire up to the point of the short circuit. In the equation I=V/R, less resistance with the same source voltage results in higher current. Read More
no.because current always try to flow trough low resistance path.as short circuit has low resistance current pass trough short circuit Read More
The voltage of a circuit with a resistance of 250 ohms and a current of 0.95 amps is 237.5 volts. Ohms's law: Voltage = Current times Resistance Read More
Resistance is the ratio of voltage to current, R=-V/I. In a parallel circuit there are more than one path for current, thus there is more current for the same voltage or lower resistance. Read More
Resistance is the ratio of voltage to current. Read More
If the resistance of an electric circuit is 12 ohms and the voltage in the circuit 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 Read More
Ohm's law: voltage is current times resistance. Restating this; current is voltage divided by resistance, so increasing resistance would decrease current. Read More
Electricity travels in a path of least resistance. A short circuit can be classed as a circuit of very little or no measurable resistance. In a short circuit the supply voltage returns directly to the return conductor or a grounded medium as this circuit has a lower resistance that the load resistance. The load resistance in a circuit is what controls the amperage flowing in the circuit. A short circuit with a very low resistance… Read More
What will happen in a circuit if the voltage does not change but the resistance in the circuit increases?
If the resistance increases, while the voltage stays the same, current will decrease. Current = voltage divided by resistance Read More
The resistance of a circuit if current flow is 6 amperes and voltage drop is 120 volts is 20 ohms. (Ohm's law: resistance is voltage divided by current.) Read More
A circuit with a voltage of 60 volts and a current of 2 amperes has a resistance of 30 ohms. Ohm's law: Voltage equals resistance times current. Read More
Increasing resistance decreases current. Read More
If current is held constant, the voltage across the circuit varies in direct proportion to the resistance. If voltage is held constant, the current through the circuit varies in inverse proportion to the resistance. Read More
The resistance of a thermistor decreases when the temperature increases. So more current can pass when the thermistor has a high temperature. Read More
Current is inversely proportional to the resistance of the circuit. Resistance goes up, current goes down. Resistance goes down, current goes up. Read More