Voltmeters, Physics

Assignment Help:

Voltmeters:

Voltmeters are used to measure emf's and more commonly potential differences. The two probes of the meter are therefore connected to the two points between which the potential difference is required.

66_voltmeter.png

If the potential at A with respect to B is required, the red lead is connected to point A, the black lead point B.
If the potential at B with respect to A is required, the red lead is connected to point B, the black lead point A.
If the potential between a point and Earth or ground is required. The red lead is connected to the point and the black lead is connected to ground or Earth.

 


Related Discussions:- Voltmeters

Determine the velocity of a wave frequency, The frequency of a wave is 50 H...

The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave? Ans: The velocity of given wave is 1250 meters/second.

Explain nortan''stheorem, Nortan'sTheorem can be stated as follows: Any tw...

Nortan'sTheorem can be stated as follows: Any two-terminal active network having voltage source and resistances when viewed from its output terminals is equal to a constant-curren

What are the image height and orientation, A 5.0-cm-tall object is placed 1...

A 5.0-cm-tall object is placed 16 cm from a convex lens with a focal length of 8.4 cm. What are the image height and orientation?

What is atomic models?, What is Atomic Models? The concept of atoms was f...

What is Atomic Models? The concept of atoms was first suggested by the ancient Greeks. The atom was supposed to be the smallest piece of matter. Then J. J. Thompson discovered th

Where does centre of gravity and centre of mass differ?, WHERE DOES C.O.G A...

WHERE DOES C.O.G AND C.O.M DIFFER?....GENERALLY BOTH COINCIDES....GIVE EXAMPLE WHERE BOTH DIFFER? Ans) C.O.G and C.O.M mainly coincides at the see-level region.But C.O.G is a va

Calculate the number of earth days in one neptune year, A year is explained...

A year is explained as the time it takes for a planet to travel one full revolution around the Sun. One Earth year is 365 days. Calculate the number of Earth days in one Neptu

Circular motion, A car of mass 800 kg is pulling a trailer of mass 300 kg u...

A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.5 N per kg o

Describe an echo, Describe an echo. What is the minimum distance needed to...

Describe an echo. What is the minimum distance needed to form an echo. Write its application.

Plot the engineering stress strain curves, Given the properties in the tabl...

Given the properties in the table below a. Plot the engineering stress-strain curves for the 3 materials. You can assume the materials behave linearly when they plastically

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