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What else can I help you with?
How much current flows through a resistor with zero potential difference?
No current flows when the the voltage is zero.
What effect if any does connecting a voltmeter across a resistor in a circuit have on the current through resistor?
A very very tiny amount of the current that would normally flow through the resistor instead flows through the voltmeter, allowing it to make its measurement. For most purposes this very very tiny amount of current can be completely ignored.
How much current flows through a resistor of 285 ohms if the potential difference across the resistor is 122 volts?
Use Ohm's Law, i.e., V=IR here, V=voltage I=current R=resistance
Is it true that a resistor raises the voltage across its terminals as current flows through it?
It depends on how you choose to define current and polarity...The normal convention is that current flows from positive to negative, even though that is not true. It is simply a convention, making it easier to analyze a circuit and to not have to deal with negative numbers. In this convention, the terminal of the resistor that current is flowing into will be more positive than the other terminal.The accepted reality is that current flows from negative to positive. In that convention, the terminal of the resistor that current is flowing into will be more negative than the other terminal.It does not really matter which convention you use, so long are you are consistent in the application of the convention and in the treatment of signs.Thank you, so it is not true, right?Another AnswerNo, it is not true. In order for current to pass through a resistor, there must be a potential difference across its ends. The magnitude of the current depends on the value of the potential difference. So a larger current is the result of a larger potential difference, NOT the other way around.The same applies to 'voltage drops'. Voltage drops are not the result of a current passing through resistors in series; voltage drops are necessary for the current to flow through each resistor.
How does the current in a resistor change if the voltage across the resistor is increased by a factor of 2?
It decreases by a factor of 4
Does current flow through a resistor, or does it flow across a resistor?
Current flows through a resistor, not across it.
Resistor get hot when electrical charge flows through it?
When an electrical charge flows through a resistor, some of the electrical energy is converted into heat due to the resistance of the material. This heat causes the resistor to get hot, and the temperature increase is proportional to the amount of current flowing through it and the resistance of the resistor. If too much heat is generated, the resistor may be damaged or experience a change in resistance.
Is current is drop when it flowing through the resistor?
Current flows in loops, voltage drops across elements. With relation to current, what flows in, must flow out, so no, current is not dropped across a resistor, it flows through a resistor and voltage is dropped across the resistor.
How does current change through a resistor?
When an electric current flows through a resistor, the resistor resists the flow of the current, causing a decrease in the current. This decrease in current is proportional to the resistance of the resistor, as described by Ohm's Law.
What is the point of a resistor in an electrical circuit?
A resistor in an electrical circuit is used to control the flow of electric current and reduce the amount of voltage in the circuit. It helps regulate the amount of current that flows through the circuit and protects other components from damage due to excessive current.
Does voltage flow across or through a resistor?
No. If a voltage is applied across a resistor, a current flows through it.
The total current that flows through a circuit is the same as the current that flows through each individual resistor connected in series?
True
Why does a resistor heat up when an electric current flows through it?
Current moving through a resistor causes it to heat up because of the flowing electrons bumping into the atoms in the resistor.
How much current flows through a resistor with zero potential difference?
No current flows when the the voltage is zero.
What is the resistance of a resistor if the potential differennce across the resistor is 9 V when current of 1 A flows through the resistor?
9 ohms
A current of 2.0 A flows through a 20 Ω resistor What is the voltage?
40volt
What flows through an electric circuit?
An electrical current.
