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True or false if the voltage and resistance of a circuit stay constant the amperage can never change?
WinnieRenee
The equation for the three values in the question will give the definite answer.
Amperage (I) is equal to the voltage (E) divided by the resistance (R).
I= E / R So as you can see the answer is True.
Example: 10 Volts and 50 Ohms in a circuit will have a current of .2 Amperes flowing through it. 10 / 50 = .2
You can also rearrange the equation to find the other two:
E= R * E
R= E / I
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What does volts times amperage equal?
Voltage is equal to amperage time resistance. V=IR Therefore, I'd say voltage times amperage is equal to amperage squared times resistance. VI=IIR Really there's no point in multiplying the two. However, if you were to divide voltage by amperage, you would have the resistance of the circuit. V/I=R
What 2 Factors Determine How Much Amperage Will Flow?
Voltage and resistance determine amperage, assuming the source can provide the amperes.
What will the voltage drop on a 1.5 mm cable run 1.5 kilometres be?
This is a voltage drop question. The amperage of the circuit must be given. Without the load amperage this question can not be answered.
What restricts the flow of energy?
You can change current by altering potential difference or resistance... But assuming the voltage is constant, the resistance of the circuit restricts the flow of electrical current.
Does increasing the voltage to an electric heater increase the amperage it draws?
It will increase the current since the water heater is made of a heating element and which is resistive in nature. Ohms law states that V=IR where V is the voltage, I the current and R the resistance. Now the resistance will always remain constant. Thus, when the voltage is increased, the current will also increase.
Doubling the resistance in a circuit will increase or decrease amperage?
If voltage remains constant and resistance is increased, the amperage will decrease per Ohm's Law.
What tool can be used to test voltage resistance and amperage in a circuit?
A multimeter.
If the resistance in a circuit is doubled while the voltage remains the constant the current is?
It is halved. coz voltage=current * resistance
In a AC parallel circuit which is constant voltage or resistance?
Voltage will be constant. Resistance is dependent on the components in the circuit. Source: Electronics Technician for the US Govt
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
What specialty tool can be used to test voltage resistance and amperage in a circuit?
A multimeter.
How does current vary with the resistance in the circuit if the voltage is constant?
Inversely. As resistance increases, current dereases; given that the applied voltage is constant.
What does volts times amperage equal?
Voltage is equal to amperage time resistance. V=IR Therefore, I'd say voltage times amperage is equal to amperage squared times resistance. VI=IIR Really there's no point in multiplying the two. However, if you were to divide voltage by amperage, you would have the resistance of the circuit. V/I=R
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.
How the current in a circuit changes if the voltage in the circuit is decreased and the resistance remains the same?
If the ratio of voltage to current is constant, then the circuit is obeying Ohm's Law. If the ratio changes for variations in voltage, then the circuit does not obey Ohm's Law.
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
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.
