Physics and shizzles

1. Definition    The resistance of a component is a measure of the opposition an electric current experiences when it flows through the component. The resistance (R) of a component is the ration of the potential difference (V) across it to the current (I) flowing through it.    Aside from temperature, the resistance (R) of a conductor also depends on: Its length Its cross-sectional area (A) or thickness The type of material it is made of 2. Formula Resistance Formula Where: I stands for electric current (A) V stands for the potential difference (Volt) R stands for resistance (Ω) Resistivity Formula Where: R stands for resistance (Ω) ρ stands for resistivity (Ωm) A stands for cross sectional area (m²) L stands for length (m) 3. Important Figure    Georg Ohm (1789-1854) was a German physicist, he is best known for his "Ohm's Law" which states that the current flow through a conductor is directly proportional to the p

1. Definition    When electrons move, we say that an electric current is produced. An electric current is formed by moving electrons. Conventional current is in the direction opposite to electron flow. An electric current (I) is the rate of flow of electric charge (Q). 2. Formula Where: I stands electric current (A) Q stands for electric charge (C) t stands for the time taken (s)  3. Important Figure    Nikola Tesla (1856-1943) was a Serbian-American engineer and physicist who invented the first alternating current (AC) motor and developed AC generation and transmission technology. Though he was famous and respected, he was never able to translate his copious inventions into long-term financial success, unlike his early employer and chief rival, Thomas Edison. In the 1890s Tesla invented electric oscillators, meters, improved lights, and the high-voltage transformer known as the Tesla coil. 4. Uses in Everyday Life    Electric current can be seen

1. Definition   A circuit is any path along which electrons can flow. There are two types of circuits, one is the series circuit and the other is the parallel circuit.    When a capacitor is connected to a battery in a circuit, the electrons flow from the battery to the capacitor plate that is connected to the battery's negative terminal. The capacitor plate that is connected to the positive battery terminal does the opposite, it sends electrons back to the battery.  2. Formula and Example           Series Circuit Example:      Parallel Circuit Example: 3. Important Figure    The battery could produce a continuous flow of current, which made it possible for the development of the first electrical circuits. Alessandro Volta invented the first battery, the voltaic pile in 1800. The very first circuits used a battery and electrodes immersed in a container of water. Volta discovered he could produce a steady flow of electricity using bowls of

1. Definition    A capacitor is a device used for storing energy. When we connect a battery across the two plates of a capacitor, it gets charged. The potential difference gradually increases across the two plates and the battery had to do more work to deliver the same amount of charge due to the continuous increase in potential difference. 2. Formula and Example Where: W stands for work (J) C stands for capacitance (F) Q/q stands for charge (C) V stands for electric potential (Volt) Example:    An air-filled parallel plate capacitor has a capacitance of 5.0 pF. A potential of 100 V is applied across the plates, which are 1.0 cm apart, using a storage battery. What is the energy stored in the capacitor? Answer: 3. Important Figure     Pieter Van Musschenbroek was a Dutch physicist who invented the Leyden jar, a device used for storing electrical charges. Musschenbroek was a professor of mathematics and physics at the University of

1. Definition    Capacitors are electrical components that function to store electrical charges. 2. Formula 3. Important Figure    Pieter Van Musschenbroek was a Dutch physicist who invented the Leyden jar, a device used for storing electrical charges. Musschenbroek was a professor of mathematics and physics at the University of Leyden in Holland. Musschenbroek was conducting an experiment in which he poured water into a glass jar and connected the jar by wire to a friction machine that produced static electricity. The device, which was later named the Leyden jar, is stated to be the prototype of capacitors. 4. Uses in Everyday Life    Capacitors have been used to store electrical energy since the late 18th century. Benjamin Franklin was the first to coin the phrase "battery" for a series of capacitors in an energy store application. Individual capacitors generally do not hold a great deal of energy, providing only enough power for electronic

1. Definition    Electric potential is the magnitude of the electric potential energy for each charge. 2. Formula     Where: V is the electric potential (Volt) k is a constant with a value of  8.99 x 10 9 N m 2 /C 2   q is the charge of each object (C) r is the distance between the charges (m) 3. Important Figure        Alessandro Volta was a physicist, chemist, and a pioneer of electrical science. He is most famous for his invention of the electric battery. He discovered that electric potential in a capacitor is directly proportional to electric charge and in recognition of Volta's contribution to science, the unit of electric potential is called the volt. 4. Uses in Everyday Life    A battery powered electric circuit has locations of high and low potential. A charge moving through the circuit will experience charges in electric potential as it moves locations. In a battery there is an electric field established between the two termina