# Resistor

This Section Cover topics about Resistor, Basic behind Resistor the use of Resistor and type of Resistor, How to calibrate Resistor and its wide use in circuit.

## Why can the resistance of a resistor be measured while it is in a circuit?

Why can the resistance of a resistor be measured while it is in a circuit? Normally, it cannot be. In simple terms, you will also measure the other components of

## What is the meaning of the tolerance of a resistor

What is the meaning of the tolerance of a resistor? Common are 5% and 1%. Sometimes they are marked with an extra color band indicating tolerance. The tolerance is the

## How do we calculate heat produced in a resistor

How do we calculate heat produced in a resistor? The voltage squared (in volts) divided by the resistance (in ohms) is equal to the power (in watts). take the voltage

## Why do capacitors need a resistor to discharge

Why do capacitors need a resistor to discharge? A charged capacitor contains a certain amount of potential energy. The inclusion of a resistor on the discharge circuit involves a potentially

## Why is a resistor used as a load in rectifier

Why is a resistor used as a load in rectifier? A rectifier suggests that you are referring to a power supply, and that the load would never be just a

## What can cause a resistor to become non ohmic

What can cause a resistor to become non ohmic? all resistors have a range of conditions to be ohmic. One of the most important is the temperature: heat them enough

## How do resistors actually resist electricity

How do resistors actually resist electricity? The electrons in the resistor material will have limited mobility compared to a good conductor and better mobility than those of an insulator. Mobility

## What are the uses for this variable resistor

What are the uses for this variable resistor? this is used as a sensitivity regulator or feedback impedance level control. it defines the frequency of the ne555 to set this

## Does a resistor have polarity Why or why not

Does a resistor have polarity Why or why not? No the resistors are bidirectional and can therefore be used in both directions. Do not go wrong with the colored lines,

## What is the function of a variable resistor

What is the function of a variable resistor? Most volume controls are variable resistors! the control you use to dim the lights in some cases. also the speed dial on

## Does a resistor reduce current and voltage

Does a resistor reduce current and voltage? Yes. this reduction depends on the connection scheme. The series resistor is used to limit the voltage by making the current constant, but

## Why is a diode connected in a series with resistors?

Why is a diode connected in a series with resistors? It is possible that the diode series resistor is used as a current limiting resistor to avoid destroying the diode

## Why do we use a resistor in an RC circuit?

Why do we use a resistor in an RC circuit? The capacitor and the resistor in series serve as a transient voltage suppressor and suppress voltage peaks. the capacitor absorbs