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

State laws of motion, 1. Every object in a state of uniform motion tends to...

1. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. II. The relationship between an object''s mass m,

Explain average acceleration, AVERAGE ACCELERATION: The total change in...

AVERAGE ACCELERATION: The total change in velocity of a body separated by total time taken is known as average acceleration. It is denoted by a ? av   or  .

Modulation and transmission, The amplified video signals are amplitude modu...

The amplified video signals are amplitude modulated using a suitable r.f. carrier wave in a transmitter called ‘AM' picture transmitter. Similarly, the amplified audio signals are

Who manufacture end fitting, Who manufacture end fitting? Every system ...

Who manufacture end fitting? Every system manufacturer creates a range of end fittings designed to be used all along with their own fiber system.

Define ultimate strength , The stress at which the specimen breaks or reptu...

The stress at which the specimen breaks or reptures ultimately is known as ultimate strength. We also called this TENSILE STRENGTH .

Explain constant current system, Explain Constant current system Const...

Explain Constant current system Constant current system : - In this process, the charging current is kept constant by varying the supply voltage to overcome the enhanced back

Determine the Dielectric energy of capacitor, An air dielectric is changed ...

An air dielectric is changed with a glass dielectric inside a capacitor of fixed dimensions.  Relatively speaking, what will occur to the quantity of charge the capacitor can

Explain the magnifying power of an astronomical telescope, The magnifying p...

The magnifying power of an astronomical telescope in the normal adjustment position is 100. The distance among the objective and the eye-piece is 101 cm. Measure the focal lengths

Show the conditions for total internal reflection, Show the conditions for ...

Show the conditions for total internal reflection to happen. Arrive at the relation between refractive index and critical angle. What do you mean by optical fibre? on what rules do

Why doesnt particle speed up as it goes through the resistor, Regard as a p...

Regard as a positively charged particle in a circuit. As it moves during a resistor in the circuit the positively charged particle moves from a point one end of the resistor in the

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