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The symbol q in the equation is the quantity of charge on the test charge (not the source charge). … Electric field is the force per quantity of charge on the test charge. The electric field strength is not dependent upon the quantity of charge on the test charge.

## What does Q mean in electric field?

Big Q represents the source charge which creates the electric field. Little q represents the test charge which is used to measure the strength of the electric field at a given location surrounding the source charge.

## What is the value of Q in electric field?

The magnitude of the electric field E created by a point charge Q is E=k|Q|r2 E = k | Q | r 2 , where r is the distance from Q. The electric field E is a vector and fields due to multiple charges add like vectors.

## What is Q in Coulomb’s law?

q is the symbol used to represent charge, while n is a positive or negative integer, and e is the electronic charge, 1.60 x 10^{–}^{19} Coulombs.

## Why is charge represented by Q?

This “predominance” or “deficiency” of electrons, the principle we know as “charge,” was also called the “quantity of electricity.” “E” referred to electrons, so “Q,” after the first word of that phrase, came to represent “charge.” Wikipedia notes that “the term ‘quantity of electricity’ was once common in scientific …

## What does Q stand for in thermal physics?

Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆ is a symbol meaning “the change in” ∆T = change in temperature (Kelvins, K)

## How do you find q in physics?

Q = m•C•ΔT

where Q is the quantity of heat transferred to or from the object, m is the mass of the object, C is the specific heat capacity of the material the object is composed of, and ΔT is the resulting temperature change of the object.

## What is the Q of Proton?

Protons and electrons have an another intrinsic property called charge. q_{proton} = 1.602*10^{–}^{19} C, q_{electron} = -1.602*10^{–}^{19} C. The charge of a fundamental particle may be positive or negative, but its magnitude is always an integer multiple of the fundamental quantity q_{e} = 1.6*10^{–}^{19} C. Unlike mass, charge is quantized.

## What does W VQ mean?

The equation W=VQ W = V Q represents the amount of work done by an electric current. In this formula: W = work done, in Joules. V = potential energy of the circuit, in Volts. Q = quantity of electric charge, in Coulombs.