Question: Is It Possible To Have Voltage Without Current?

How do you find current without voltage?

No,there is no current without voltage because according to ohm’s law V=IR where “v” is voltage “I” is current and “R” is resistance.

when V=0 then I=0 and R=0 so not possible without current..

Will there be electric current if there is no charge?

Explanation: You can’t have currents without charge because if there’s a current there’s a charge moving, and every charge produces a voltage, but you can have currents without charge differences in space.

Why does current flow from negative to positive?

The flow of electric current occurs because we have a high potential of electrons gathered at the positive terminal and a low potential of electrons at the negative terminal.

Do electrons really move in a wire?

The electricity that is conducted through copper wires in your home consists of moving electrons. The protons and neutrons of the copper atoms do not move. The actual progression of the individual electrons in a given direction through the wire is quite slow.

What does 0 volts mean?

When used while measuring potential difference, zero volt simply means the two points in measurement has same electric potential. … It is also measured in volts. If the source provides no energy then the emf of the source is zero volt. Also, the ground does not have zero voltage.

What is voltage when current is zero?

The open circuit voltage is the voltage difference measured between two terminals when no current is drawn or supplied. The short circuit current is the current that flows when the terminals are forced to have zero voltage difference.

Why is there voltage but no current?

So, if there is no current flow between two points, it simply implies that there is no voltage difference between them. … Voltage defines the energy state of the body. Current is produced due to voltage, but the converse is not true. So, for a voltage to exist, existence of current is not a required condition.

Is current dependent on voltage?

The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow. Just like voltage, resistance is a quantity relative between two points.

How many volts are in an amp?

Volts / Watts / Amps Converter You have a 12 Volt power supply that delivers 1 Amp of current.

Will current flow if potential difference is zero?

When there is no potential difference in the circuit, then no current will flow. … Since there is no potential difference,the current flowing through the circuit will be zero. If the resistance becomes zero(i.e short circuit) the current will still not flow as there is no potential difference.

What’s the difference between voltage and current?

Voltage is the difference in charge between two points. Current is the rate at which charge is flowing.