Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between Potentiometer & Voltmeter. voltmeter and potentiometer both are used to find the value of voltage. a voltmeter is used to find the voltage at the endpoint of circuitry while a potentiometer is to find the electromotive force circuitry. The working operation of the potentiometer is based on the comparison in which the unknown voltage of the circuit at any point can be found by comparing the voltage of the source with that point. If both voltages have a similar value then it shows on the galvanometer.
While the voltmeter is linked in parallel combination to find the value of the voltage of the circuitry. In today’s post, we will have a detailed look at both potentiometer and voltmeter and compare them to find their differences. So let’s get started with the difference between potentiometer and voltmeter.
Difference Between Potentiometer & Voltmeter
- It is resistance having 3 pinouts with rotating points that change the value resistance when employed in circuitry.
- Due to resistance change, it operates as a voltage divider.
- It operates like a rheostat when its two terminals are used in circuitry.
- It is used to measure the value of voltage and works as a voltage divider.
- The tape recorder uses this module to control the voice.
- The sensitivity of this device is larger than the voltmeter.
- It does not have a pointing needle like the voltmeter.
- Its working operation is like the position transducer same operation like to the joystick
- It is not used to regulate the power because it loses more power than another device
- Its structure is simple that consists of a resistance component sliding connection called a wiper.
- Its resistive part is created with carbon, graphite plastic
- Its named pots
- The brightness of tv is regulated through this device
- It provides the exact measured value.
- The resistance value offered by this instrument is infinity.
- The instrument used to find the value of voltage about two terminals of circuitry is called a voltmeter.
- The value of resistance offered by the voltmeter is larger than the ammeter.
- Its resistance value is large than the ammeter.
- Its measuring range can be varied.
- Some meter gets power from an outer source and some have its own power source to operate.
- With a transformer different voltmeters used to show the value of volts at input and output.
- An Analog meter has a needle that indicates the voltage value that to is calculated.
- To measure the small value of voltage it is linked to amplifier circuitry.
- The digital meter indicates voltage in numbers
- The circuit about which voltage is measured voltmeter is connected in parallel combination.
- It is less accurate than the ammeter.
- For measuring the volts value from some volts to thousand volts general-purpose voltmeter used
- The digital meter has a high level of correctness normally one percent than other
Potentiometer Vs Voltmeter
|It is a device used for the measurement of potential difference by comparing with a known value of voltage
|it is a device used for the measurement of voltage or electric potential difference
|It operates by comparing voltage loss about known resistance with voltage calculated
|it operated by connecting in circuits with parallel configurations and measuring volts directly
|its main types are linear, rotary, digital
|it has Analog and digital meter types
|its components are resistive elements, wipers, terminals
|Moving coil or digital display, input terminals
|it is used for instruments calibration, measurement of resistance, balancing of bridge circuits
|It is used for voltage in circuits calculation, testing batteries, power supplies
|Direct or interpolated
|Low to moderate
|Low to High
|it has the ability to handle high values of voltage and current
|it also handles voltage and current
|it measures voltage indirectly
|It measures voltage directly
|Its other features are frequency measurement, capacitance measurement, and resistance measurement
|What is a potentiometer?
|Using a known voltage as a reference, a potentiometer may be used to detect potential differences (voltages). It operates by contrasting the voltage being measured with the voltage drop over a given resistance.
|Write the different types of potentiometers.
|There are many types of of potentiometers, for example linear, rotary, and digital. The resistance gradient of rotary potentiometers is circle shaped, while the resistance gradient of linear potentiometers is linear structured. Digital potentiometers replace the conventional resistive element with electronic circuitry.
|What is a voltmeter?
|The tool used to measure the electric potential difference (voltage) is called a voltmeter. It reads the voltage directly and is linked in parallel with the circuit or component being monitored.
|Write different types of voltmeters.
|The two types of voltmeters are analog and digital. While digital voltmeters show the voltage as a number value, analog voltmeters employ a moving coil to display the voltage measurement. Some digital voltmeters additionally have extra capabilities, such the ability to measure frequency, capacitance, and resistance.
|How do I use a potentiometer or voltmeter?
|Connect the two terminals of a potentiometer across the circuit being tested, then turn the wiper to the desired resistance. Connect the two input terminals of a voltmeter across the circuit being tested, then read the voltage from the display. To avoid causing harm to the instrument, choose the appropriate range for the voltage being measured. When using any electronic item, always adhere to the usage instructions and safety precautions provided by the manufacturer.
That is a detailed post about the difference between a potentiometer and a voltmeter. If you have any query ask in the comments. Thanks for reading. Have a good day.