# What is the value of the resistor?

A

**resistor**is a device that opposes the flow of electrical current. The bigger the**value**of a**resistor**the more it opposes the current flow. The**value**of a**resistor**is given in ohms and is often referred to as its '**resistance**'.A.

### What is the tolerance value of a resistor?

Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance. A gold tolerance band is 5% tolerance, silver is

**10%**, and no band at all would mean a**20%**tolerance.#### What are the colors of resistors?

Components and wires are coded with colors to identify their value and function. The colors**brown**, red,**green**,**blue**, and violet are used as tolerance codes on 5-band resistors only. All 5-band resistors use a colored tolerance band.#### What is the color code for a 10 ohm resistor?

10R / 10 ohm Resistor Colour CodeValue 10 Ω Type 4 Band Colour Code Colour Code Brown, Black, Black, Gold Multiplier Black, 1 Tolerance Gold Band ±5% #### Are electrical resistors directional?

If I understand your question, then yes -**resistors**are reversible, in the sense that they can be connected to the circuit in either direction.**Resistors**are not like diodes or capacitors. They do not have a polarity. The conduct (or resist) current equally in both directions of current flow.

B.

### How you can read the value of a resistor?

**Steps**

- Position the resistor with the gold or silver color band to the right..
- Read the color sequence that must be decoded to determine resistance.
- Determine the coded number for the resistive value.
- Determine the tolerance of the resistor.
- Determine the decoded number for the resistive value.

#### How you can read the value of a resistor?

**Steps**- Position the resistor with the gold or silver color band to the right..
- Read the color sequence that must be decoded to determine resistance.
- Determine the coded number for the resistive value.
- Determine the tolerance of the resistor.
- Determine the decoded number for the resistive value.

#### What is the value of the resistor?

A**resistor**is a device that opposes the flow of electrical current. The bigger the**value**of a**resistor**the more it opposes the current flow. The**value**of a**resistor**is given in ohms and is often referred to as its '**resistance**'.#### How do you check a resistor with a multimeter?

**Steps**- Remove power from the circuit containing the resistor.
- Isolate the resistor from the circuit.
- Inspect the resistor.
- Read the resistor value visually.
- Prepare a digital multimeter (DMM) to measure the resistor.
- Measure the resistance.
- Determine the actual resistance of the resistor.

C.

### How are resistor values measured?

The electrical resistance of a

**resistor**is**measured**in ohms. The symbol for an ohm is the greek capital-omega: Ω. The (somewhat roundabout) definition of 1Ω is the resistance between two points where 1 volt (1V) of applied potential energy will push 1 ampere (1A) of current.#### Why are resistors important?

The main function of**resistors**in a circuit is to control the flow of current to other components. Take an LED (light) for example. If too much current flows through an LED it is destroyed. So a**resistor**is used to limit the current.#### What is 20k ohms?

The range switch sets where the decimal place is located on the display. On the 200**ohm**range, full scale will be 199.9**ohms**. On the 2K scale, it is 1999**ohms**. For**20K**, 19.99 K, and 20 Meg, 19.99 meg.#### What is the measurement of resistance?

Electrical**resistance**is**measured**by either of two methods: constant current or constant voltage. The constant current technique sources a known current through an unknown**resistance**and the resulting voltage is**measured**. This technique is generally used for**resistance**values below 200M ohms.

Updated: 6th October 2019