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What will be the potential difference across a 50Ω resistor if a current of 500mA is flowing through it?
Wiki User
∙ 13y ago
Potential difference equals current multiplied by resistance or E = IR
therefore the answer to your question is 25 volts
Wiki User
∙ 13y ago
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The difference between charge and current?
Charge is potential, current is flowing.
What kind of relationship can be concluded about the voltage difference across a resistor and the current flowing through it?
POWER=VI. V=voltage I= current
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.
When does current stop flowing in a circuit?
Current flows in a circuit when there is a difference in electronic potential between two points.
What is the current drop across the resistor?
The correct question is what is the voltage drop across a resistor or the current flowing through the resistor using Ohm's Law where Voltage = Current x Resistance
What kind of relationship can be concluded about the voltage difference across a resistor and the curent flowing through it?
Ohm's Law Voltage = Current x Resistance
How does electrical current flow in a circuit?
There is a potential difference (voltage) between two points and a path for electrons to travel from an area of low potential (negative) to an area of high potential (positive). Note the direction of "current flow" is opposite the direction of electron flow. In other words current flows from positive to negative. In a circuit involving only a resistor, the current flowing in the circuit is given by I=V/R where I = current, V= voltage, and R=resistance.
How electric current flows in a circuit?
There is a potential difference (voltage) between two points and a path for electrons to travel from an area of low potential (negative) to an area of high potential (positive). Note the direction of "current flow" is opposite the direction of electron flow. In other words current flows from positive to negative. In a circuit involving only a resistor, the current flowing in the circuit is given by I=V/R where I = current, V= voltage, and R=resistance.
What is resistor and its use and working?
resistor is a passive component which opposes the current flowing through a closed ckt. use in opposition of current in ckt .
How does electricity flow in a circuit?
There is a potential difference (voltage) between two points and a path for electrons to travel from an area of low potential (negative) to an area of high potential (positive). Note the direction of "current flow" is opposite the direction of electron flow. In other words current flows from positive to negative. In a circuit involving only a resistor, the current flowing in the circuit is given by I=V/R where I = current, V= voltage, and R=resistance.
Resistors A and B are connected in parallel If resistor B has twice the resistance of A what is the current taken by resistor B?
half of the current flowing thru resistor 1.... V=IR.
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.
