could be a human body, machine part or tool. It is assumed that the entire energy is dissipated in a spark. If the energy is more than the Minimum Ignition Energy (MIE) of the solvent vapour, then an ignition could occur. The energy in a spark is calculated: Energy in Joules = ½...
In electronics, amps and joules are two different but related units of measurement. Understanding the difference between amps, volts, ohms and joules is the first key to building your own circuits. Luckily, an everyday analogy can help clarify these concepts. What Is an Amp? An amp, or ampe...
The joule (J) is the unit of measure for energy used in the International System of Units (SI), and the one accepted in scientific circles. The unit is used in all equations and calculations involving energy. Following SI conventions, joules are abbreviated with a capital J because the term...
Electrons are critical to the workings of electricity (notice a common theme in their names?) In its most stable, balanced state, an atom will have the same number of electrons as protons. As in theBohr atom modelbelow, a nucleus with 29 protons (making it a copper atom) is surrounded ...
What is the scientific definition for the word "Electricity?" We'd expect that physicists have a clear definition for "the quantity of electricity." However, it might suprise you to learn that the following sources are unanimous in saying that Electricity isnota form of energy. Instead, they...
by the amount of chargeat that point. It takes the charge quantity out of the equation and leaves us with an idea of how much potential energy specific areas of the electric field may provide. Electric potential comes in units of joules per coulomb (J/C), which we define as avolt(V)...
物体放入液体中能够漂浮在液面上的条件是什么The buoyancy force is equal or greater than the gravity of the object itself.4.What is the unit of energy used in electricity bills? How many joules is this equal to? (Can you show your work how you figure this out?)电费中的单位能量是什么?它...
In various applications, British thermal units (BTU) are used to express the unit for energy. One BTU is equal to approximately 1,055 joules. One joule is equal to: 1× 107 erg (exactly) 6.24150974 × 1018 eV 0.2390 cal (gram calories) 2.390 × 10-4 kcal (food calories) 9.4782 ×...
of electricity. And Amperes of electricity. Watts of electricity and Joules, all at the same time. Yet "electricity" is definitely a class of phenomena; merely a type of event. Since we can't have anamountof an event, we can't really measure the quantity of electricity at all... ...
The specific heat of water is a physical constant that dictates 4.186 Joules of energy are required to heat one cubic centimeter of water by one degree Celsius. Knowing the resistance of the heating element, one can calculate the dissipated power and calculate how much time it will tak...