Table of Contents

## How do you reduce a resistor?

Resistor Reduction

- 1 If any two or more resistors are in series combine them together and then replace it with an equivalent resistance.
- 2 If any two or more resistors are in parallel combine them together and then replace it with an equivalent resistance.
- 3 Continue doing this until you are left with only one resistor.

**How do you lower voltage?**

To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors. To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors.

### How can DC current be reduced?

Lowering amperage is done by applying Ohm’s law, given by the formula I = V/R, where I is the circuit’s total current in amperes, V is the voltage and R is the resistance. Add resistors to the circuit to increase the total resistance. A higher resistance results in a lower amperage.

**How can I reduce the voltage in my house?**

5 Ways to Protect Your House and Appliances from a Power Surge

- Install a Whole-House Surge Protector.
- Have Added Protection for Specific Devices.
- Upgrade Your AC Unit.
- Unplug Devices During a Storm.
- Inspect Your Wiring.

#### Do Resistors reduce current?

The resistor reduces the current, just like the narrow pipe reduces the flow rate. The current before and after the resistor is the same, just like the flow rate before and after the narrow pipe is the same. It reduces the current compared to a different circuit where the resistor is replaced with an ideal wire.

**Do resistors reduce voltage?**

If a component in your circuit requires less voltage than the rest of your circuit, a resistor will create a voltage drop to ensure the component does not receive too much voltage. The resistor will create a voltage drop by slowing down, or resisting, the electrons as they try to flow through the resistor.

## How can you reduce voltage without changing current?

In order to change the voltage without changing the current, you must change the resistance a porportional amount. If the load resistance varies, you can use a constant current source to maintain the current level, as hgmjr implied.

**How do you reduce 12 volts to 9 volts?**

To reduce a 12V circuit to 9V, place two resistors in series within the circuit. Find the difference between the two voltages (12V – 9V = 3V) to determine the total amount of resistance needed.

### How do you change current without changing voltage?

A component used to regulate current without changing the voltage source in an electric circuit is called variable resistance or rheostat.

**What happens if voltage too high?**

The amount of current in a circuit depends on the voltage supplied: if the voltage is too high, then the wire may melt and the light bulb would have “burned out real time”. Similarly other electrical devices may stop working, or may even burst into flames if an overvoltage is delivered to the circuit.

#### Why is my house voltage too high?

If your electricity bill is too high, one of the reasons might be that your electricity company is delivering too much electricity, that is, too much voltage, to your house. At 126 VAC, the bulb will dissipate just over 110 watts and you will pay 10.2% more for your electricity.

**Does resistor reduce current or voltage?**

In short: Resistors limit the flow of electrons, reducing current. Voltage comes about by the potential energy difference across the resistor. The mathematical answer is that a resistor is a two-terminal electric device which obeys, or you could say enforces, Ohm’s law: V=IR.