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A vacuum tube voltmeter (VTVM) is just the "old school" version of the newer (cheaper, more accurate and easier to use) digital multimeter (DMM). It is used to measure voltage (AC and DC), resistance, and (usually) current flow. It may have some other functions. For the most part, these meters (the VTVMs) used an electromechanical meter movement (expensive, shock sensitive, sometimes hard t read/interpret) in place of the display of the DMM. And they have some disadvantages over the DMM, as mentioned here and there. (There are a couple of things the old VTVM will do that the DMM has difficulty doing, but the modern DMM is a better meter for almost any application.) The need to make measurements, and, hence, the need for the meter is to support understanding and assessment of electrical "stuff" that needs to be looked at, usually to see why it isn't working properly. The meters are used by builders of electronic and electrical devices, and by the curious who wish to investigate the physics of basic electronics and electricity.
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Can you calibrate voltmeter on multimeter or multimeter on voltmeter?
how which is right and which is wrong. You need a voltage standard with that you can calibrate both to the standard
Why need to vacuum in transformer chamber before filling transformer oil and how long need to vacuum?
we need vacuum to remove moisture from tank
When measuring the potential difference across a componet you need?
A voltmeter connected in parallel.
What is the voltage of a cell measuring?
They need to use- well the best thing/object/equipment for them to use is a voltmeter!
Do you need to charge your capacitor before you install it?
Yes you must charge it before hooking it up. You can charge it with a 12 volt light bulb with leads or a voltmeter.
How is Martin Luther King Jr. Famous speech related to the universal declaration of Human rights?
both addressed the need for civil rights
Can you calibrate voltmeter on multimeter or multimeter on voltmeter?
how which is right and which is wrong. You need a voltage standard with that you can calibrate both to the standard
How we can minimize the loading effect on voltmeter?
please i need the answer
What are four themes of human services?
When talking about human resource management or human services there are four main themes that need to be addressed. The four themes are benefits administration, payroll, hiring, and conflict mediation.
How is martin Luther Jr's famous speech related to the universal declaration of human rights?
both addressed the need for civil rights
How is martin king jr's famous speech related to the universal declaration of human rights?
both addressed the need for civil rights
How is Martin Luther King Jr famous speech related to the universal declaration is human Rights?
both addressed the need for civil rights
What are two familiar mistakes when using an ohmmeter and a voltmeter?
Voltmeter connect in parallel with the circuit setting on voltmeter highest range first then to lower range. Ohmmeter we need to use the ohmmeter meter setting connect across the resistor
What is the importance of a voltmeter to a technician?
When a technician uses a voltmeter he or she can measure the power going through a circuit. It can test the safety and reliability of a an appliance also.Another AnswerA voltmeter is used to measure the potential difference, or voltage, between conductors. To measure power (as mentioned in the original answer) you need a wattmeter, not a voltmeter.
Why need to vacuum in transformer chamber before filling transformer oil and how long need to vacuum?
we need vacuum to remove moisture from tank
When measuring the potential difference across a componet you need?
A voltmeter connected in parallel.
How do you convert voltmeter to ohmmeter?
First you will need a constant current source. Do NOT connect the voltmeter to the constant current source without the resistor to be measured already connected. Do NOT use a battery, it is a voltage source. Then follow these steps to measure a resistor:connect the voltmeter across the resistor to be measuredconnect the voltmeter-resistor combination across the constant current sourceread the voltmeter and record the voltagedisconnect the voltmeter-resistor combination from the constant current sourcedisconnect the voltmeter from the resistorcalculate the resistance from the measured voltage and current from the source with Ohm's law in this form: R = V ÷ IIts much easier to just use the ohms setting on a multimeter.
