Table of Contents

- 1 What will happen if one resistor is removed from a series circuit?
- 2 What happens when one resistance in a series circuit is open?
- 3 What would happen if the resistors in a circuit will be damaged?
- 4 What happened when one resistor was removed in the parallel connection Why?
- 5 What happens if a circuit is open?
- 6 What happens when a resistor fails?

## What will happen if one resistor is removed from a series circuit?

Since the equivalent resistance is the sum of the resistance of the individual resistors, any decrease of resistance or removal of a resistor will lead to a decrease in the equivalent resistance.

**What happens when one part of a series circuit is removed?**

When one light bulb is removed from the series circuit, the other two light bulbs go out. When one part of the series circuit is removed, the circuit is “open”; the other parts do not receive electric energy.

### What happens when one resistance in a series circuit is open?

Opened Components in a Series Circuit With R2 at infinite resistance and total resistance is the sum of all individual resistances in a series circuit, the total current decreases to zero. With zero circuit current, there is no current to produce voltage drops across R1 or R3.

**What happens to a circuit without a resistor?**

If there really were no resistance in the circuit, the electrons would go around the circuit, and arrive back at the beginning of the circuit with as much energy as the potential difference (the voltage). That final energy is usually what is dissipated as heat or other types of energy by the circuit.

## What would happen if the resistors in a circuit will be damaged?

When a resistor breaks down, current typically flows through the burnt resistor without any resistance and thereby passes unchecked. Other components in the circuit may become damaged from the excess current flowing through.

**What would happen to the total current If one resistor is removed from the parallel circuit?**

By removing parallel resistance, the total resistance will increase. Therefore, the current will decrease based on ohm’s law V=IR.

### What happened when one resistor was removed in the parallel connection Why?

Book’s explanation: The battery remains the same and will provide the same voltage both with the 4 resistors and with the 3 resistors. Since the resistors are in parallel, the voltage drop on each must be the same as the voltage provided by the battery, and will be unchanged when one resistor burns out.

**What happens if a resistor opens?**

Open circuits are represented as a broken wire. For calculating an equivalent resistance, a resistor connected to the circuit at only one node is open. An open resistor (1) makes zero Ohms of contribution to the equivalent resistance and (2) can be removed from the circuit when calculating the equivalent resistance.

## What happens if a circuit is open?

If there’s a break anywhere in the path, you have an open circuit, and the current stops flowing — and the metal atoms in the wire quickly settle down to a peaceful, electrically neutral existence. A closed circuit allows current to flow, but an open circuit leaves electrons stranded.

**Why is resistor necessary in circuit?**

Protect against voltage spikes. Resistors also protect components against voltage spikes. Components that are sensitive to a high electrical current, like LED lights, will be damaged if there is not a resistor to control the flow of the electrical current.

### What happens when a resistor fails?

When a resistor fails, it either goes open (no connection) or the resistance increases. When the resistance increases, it can burn the board, or burn itself up.

**When one resistor is removed in a parallel circuit What is the total resistance?**

IncreasesWhen the resisters are connected in series resistance of the circuit will be more than the resisters are connected in parallel. Parallel resistor is removed from the circuit the resistance will increase.