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Electric current is what flows when the voltage is applied across a resistance. Electrons flow from the negative end to the positive end. Strictly, if everything was at the same voltage no current will flow because there is no distinction, positive or negative between the ends. So people often talk more accurately of voltage difference, or potential difference.
What else can I help you with?
What does changing the voltage or current in a circuit create?
an analog signal
Is a zener diode a current limiter?
No. A zener diode is a voltage limiter. Circuit design might create a current limiting response, but the basic control is voltage, not current.
How many things are needed to create a current?
A difference of potential (voltage) and a conductor connected to the voltage source will cause current flow. Not that you'd want to "short out" a voltage source with a piece of wire, but just the source of voltage and the conductor would permit current to flow. If you took a piece of wire and touched it to the terminals of a good battery, current would flow. It takes just those two things to create a current.
What does the voltage across a inductor do?
voltage across inductor create a flux. because of variation current developes an opposite emf.
When biased correctly a zener diode acts as?
a diode and it has a constant voltage across it ANSWER: acts as a voltage regulator if enough current flows to create a breakdown voltage.
What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is a relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
Why can't the potential barrier of a diode be used as a voltage source?
The potential barrier of a diode is caused by the movement of electrons to create holes. The electrons and holes create a potential barrier, but as this voltage will not supply current, it cannot be used as a voltage source.
What is the relationship between voltage and current as shown in the graph of voltage vs current?
In the graph of voltage vs current, the relationship between voltage and current is linear. This means that as voltage increases, current also increases proportionally.
Can there be a current with no voltage?
No, There can't Be current without voltage
What is the relationship among voltage circuit and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is zero drift current?
Zero drift current refers to the small amount of electrical current that flows through an operational amplifier when the input voltage is zero. This current can cause errors in precision measurements because it can create an offset in the output voltage of the amplifier. Minimizing zero drift current is important in applications where accurate and stable voltage measurements are required.
