Explain working of voltmeter, Electrical Engineering

Assignment Help:

Q. Explain working of Voltmeter?

In order tomeasure the potential difference between two terminals or nodes of a circuit, a voltmeter is connected across these two points. A practical voltmeter can usually be modeled as a parallel combination of an ideal voltmeter (through which no current flows) and a shunt resistance RV,as shown in Figure. The internal resistance RV of an ideal voltmeter is infinite, while its value in practice is of the order of several million ohms. There are what are known as dc voltmeters and ac voltmeters. An ac voltmeter usually measures the rms value of the time-varying voltage.

2448_Voltmeter.png


Related Discussions:- Explain working of voltmeter

Shunt dc motor, Shunt DC motor In this arrangement, the armature and f...

Shunt DC motor In this arrangement, the armature and field coils are connected in parallel (the motor is called 'shunt connected').     Analysis With refere

Direct and indirect semiconductors, Direct and Indirect Semiconductors ...

Direct and Indirect Semiconductors 1) In a common quantitative calculation of band structures, the wave function of a single electron traveling by a perfectly periodic lattice

What is the use of modem control unit in 8251, What is the use of modem con...

What is the use of modem control unit in 8251? The modem control unit handles the modem handshake signals to coordinate the communication among the modem and the USART.

Common-collector configuration, Common-collector configuration:  The ...

Common-collector configuration:  The common-collector that is abbreviated CC transistor configuration is displayed in figure.  In this type of configuration, the collector is

Basic characteristics and operation of mosfet, Q. Basic Characteristics and...

Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt

Transformers, What is the difference between “Insulating,” “Isolating,” and...

What is the difference between “Insulating,” “Isolating,” and “Shielded Winding” transformers? Can Acme Transformers be reverse connected? . Can Transformers develop Three Phase po

Express the storedmagnetic energ, A relay is essentially an electromechanic...

A relay is essentially an electromechanical switch that opens and closes electrical contacts. A simplified relay is represented in Figure. It is required to keep the fenomagnetic p

Checking at site - testing of meter, Checking at Site - Testing of Meter ...

Checking at Site - Testing of Meter The routine testing of meters should be carried out once in 3 years. Further, surprise checks should be conducted at the consumer's install

..analong course design, Askhigh precision linear amplifier question #Mini...

Askhigh precision linear amplifier question #Minimum 100 words accepted#

Triode mode, Triode Mode When   V GS   > V th   and   V DS...

Triode Mode When   V GS   > V th   and   V DS   GS   - V th ) The transistor is turned on, and a channel has been created that allows current to

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd