Category: Physics

What is the difference between amplitude and frequency modulation? The main difference between both modulations is that in frequency modulation, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier wave is modified according to the data. What is the frequency of AM? The frequency band […]

Why does your hair stand on end when you touch a Van de Graaff? When the Van de Graaff generator starts charging, it transfers the charge to the person who is touching it. Since the person’s hair follicles are getting charged to the same potential, they try to repel each other. This is why the […]

What is the side of your eye called? Iris: the colored part. Cornea: a clear dome over the iris. Pupil: the black circular opening in the iris that lets light in. Sclera: the white of your eye. Is the black part of your eye a hole? The pupil is a black hole located in the […]

What type of meter is 3 2? 3/2 and 3/8 are also simple triple. 4/4 time is classified as simple quadruple due to its four beats which can be divided into two notes. 4/2 and 4/8 are also simple quadruple. Notice that a time signature in simple meter will always have a 2, 3, or […]

What is the permittivity of a medium? Definition of Permittivity The approximate value for permittivity is 8.85 X 10-12 Faraday/meter, which is found in vacuum medium. The permittivity measures the number of charges needed for generating a unit of electric flux in a specific channel. What is electric intensity in physics? What is Electric Field […]

What is the least reactive element? Noble gases Which of these parts of an atom is the smallest? Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. What are the […]

What is a good example of recycling? Recyclable materials include many kinds of glass, paper, cardboard, metal, plastic, tires, textiles, batteries, and electronics. The composting or other reuse of biodegradable waste—such as food or garden waste—is also a form of recycling. What are the disadvantages of recycling? Disadvantages of Recycling High upfront capital costs. Recycling […]

Are there fish in man made ponds? Rare Fish Show Up in Man-Made Ponds. Scientists in Southern California have discovered a mysterious booming population of endangered desert pupfish in man-made research ponds designed for an entirely different purpose. How do man made ponds get fish? A pond that forms near other ponds may receive new […]

When approaching a railroad crossing with flashing lights you must quizlet? Flashing red lights, lowered crossing gates and/or a bell at a railroad crossing indicate that you must stop, at least 15 feet (5 m) from the tracks. Do not go across the tracks until the lights and bell have stopped and the crossing gates […]

What is transistor action? So in a NPN Transistor it is the movement of negative current carriers (electrons) through the Base region that constitutes transistor action, since these mobile electrons provide the link between the Collector and Emitter circuits. How many electrons are there in a transistor? There are about 6.24×1018 electrons per Coulomb, so […]