Table of Contents

- 1 Can current flow through a circuit if there is no potential difference?
- 2 What is it called when no current can flow through the circuit?
- 3 What does no potential difference mean?
- 4 What if there is no resistance?
- 5 What will happen if the circuit offers little or no resistance to the flow of charges?
- 6 What happens when there is no potential difference in a circuit?
- 7 What causes current to flow in a circuit?

## Can current flow through a circuit if there is no potential difference?

Without potential difference, current can not flow because we know that an electric current flows between two points due to the potential difference between them. Thus, as long as the potential difference is maintained between the two points, the electric current keeps flowing continuously.

**When there is no resistance in a circuit there will be no current flow?**

Typically, you will get current to flow as long as it has a path with finite resistance (even zero), a voltage difference, and a supply of charge carriers (e.g., electrons).

### What is it called when no current can flow through the circuit?

CLOSED CIRCUIT. OPEN! CLOSED! In the open circuit the current can not flow from one end of the power source to the other. Because of this there is no current flow, and therefore the light does not turn on.

**What happens when there is no potential difference?**

If there is no potential difference means the circuit is not alive. It is dead. In case of short circuit, the amount of current flowing will depend on the amount of voltage the circuit is carrying. Basically short circuit current can be measured in terms of 10 times the operating current of the circuit.

## What does no potential difference mean?

1. The potential difference V between two points is the work required per unit charge to move the charge between two points. If current is flowing between two points with no potential difference it means there is no resistance between the points requiring work to overcome.

**Can there be no resistance in a circuit?**

Definition. A short circuit is an abnormal connection between two nodes of an electric circuit intended to be at different voltages. In an ‘ideal’ short circuit, this means there is no resistance and thus no voltage drop across the connection. In real circuits, the result is a connection with almost no resistance.

### What if there is no resistance?

Ideally, if there is no resistance ,i.e, short circuit is connected across an dc source, infinite current will flow as I=V/R, and R=0. Practically, if you connect a wire directly across a battery, it will start heating. Resistance of short wire is in the range of Ohms which is very less as compare to resistors.

**How do closed circuit and open circuit differ?**

An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. A closed circuit is one that is complete, with good continuity throughout.

## What will happen if the circuit offers little or no resistance to the flow of charges?

Ideally, if there is no resistance ,i.e, short circuit is connected across an dc source, infinite current will flow as I=V/R, and R=0. Practically, if you connect a wire directly across a battery, it will start heating.

**What happens if there is zero resistance?**

When the resistance in any circuit is equal to zero then the current passing through that circuit will be infinite.

### What happens when there is no potential difference in a circuit?

So, where there is no potential difference — there is no movement, either in a series or a parallel circuit. When there is no potential difference in the circuit, then no current will flow. But in the case of a short circuit, will the current flow?

**How does current flow in a short circuit with 0 resistance?**

Then how does current flow in a short circuit (assume 0 resistance for short-circuited wire)? If there can be no current between two points where the potential difference is zero, then there can be no current flowing in ideal wires (wires with zero resistance) that connect together voltage sources and circuit elements that do have impedance.

## What causes current to flow in a circuit?

The current is caused by a potential difference in the circuit as a whole, it doesn’t have to be between any two points. In a loop there’s only 1 current, which is the same everywhere, even between points at the same voltage. What is the current flowing from node1 to node2? What is the potential difference from node1 to node2?

**Why is voltage zero in an ideal short circuit?**

This is an ideal short circuit; the voltage is zero for any current through. There is no violation of Ohm’s Law – the open circuit and short circuit are simply the limits of R → ∞ and R → 0 respectively. so when R is zero, as is the case for a short circuit, then V will be zero as well, no matter how high the current I is.