Electrical conductor

The power pack was connected to a non-power electrical outlet. 2. Alligator-clip wires were attached to the D.C. outputs of the power pack. 3. An ammeter with already an alligator clip wire attached, was connected to one end of a wire that was attached to the power pack (See Diagram A). 4. The opposite ends of the alligator clip wires were attached to either end of a 17.5cm long graphite pencil (making sure that both ends of the pencil were sharpened). 5. A voltmeter that had two alligator clip wire attached was connected to either end of the graphite pencil 6. The electrical outlet and the power pack were turned on, ensuring that the voltage on the power pack was set to 8V. 7. The current and the voltage were then recorded for the pencil type and length* 8. The results were then implemented into the resistance (see formula A), and resistivity (see formula B) formula. 9. The following steps were repeated for the 10V setting on the power pack, along with the other eight varieties of lead pencils, as well as for the lengths: 13cm, 9cm, and 5cm. * Ensure…

and ohms over several ranges of value. Conductor: Object allowing the transfer of electrons Insulator: Prevention of an object receiving an electric current. Resistance: Prevents passage of normal current (light bulb or LED; the object) Parallel: each resistor or light is independent. If one goes out, the rest still stay one. Series: each light is dependent on another one. If one goes out, so do the rest. Scientists discovered potatoes are the best produce to conduct enough power to create…

Terminology and units Current Current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms. The common symbol for current is the uppercase letter I. Potential difference The potential difference between two points.The units for potential difference are Joules per coulomb, or volts. (1 volt = 1 Joule/coulomb). Electrical charge Electric charge is carried by the electrons ( negative charge) and protons (positive charge) within an atom. The…

There are many factors that contribute to an ensembles’ sound. Most of which we spend our musical lives practicing; things like tone, vowels, diction, ect. As we begin to make the transition from ensemble member to leader we are thrown yet another contributing factor to sound: conducting. The art of conducting is a continuously growing set of skills for an individual. Many of the greatest conductors have spent decades perfecting their craft and creating their style, while building their…

Through a scientific invention the student will create a model that transmits electrical current and demonstrate that electricity travels in a closed path. Materials: (6) light bulb, (6) battery, (6) 6 in. insolated copper wires, (6) wire stripper, (6) switches, (21) safety goggles, (21) aprons, and boxes of gloves. Vocabulary: Circuit, closed circuit, open circuit, electrical circuit, electromagnetic, and parallel circuit Engaged: We are going to do a KWL chart to find out, what you know about…

Tim Clayton is a famous sports photographer who was born in Leeds, England in 1960. Clayton learned his skills in the darkroom at Yorkshire Evening Post and The Yorkshire Post where he worked from 1976 to 1990. He noted that the only influence on him was his parents, who encouraged him pursue a career in photography. Over the years, he developed a love for sports and enjoyed capturing big moments of a sporting event in a photograph. In 1990, he decided that he wanted to live somewhere warmer, so…

measured in Ohm-meters (Ω-m). Electrical resistance (R) is the opposite of the flow of electrons, or the passage of an electrical current. Electrical conductivity (σ) is the opposite of resistivity and is measured in Siemens (S). Electrical conductivity is defined as; the degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field which causes the flow of current. In this experiment I am…

This is resistance, which is measured in units called ohms. Resistance is a term that describes the forces that oppose the flow of electron current in a conductor. All materials naturally contain some resistance to the flow of electron current. We have not found a way to make conductors that do not have some resistance. If we use our water analogy to help picture resistance, think of a hose that is partially plugged with sand. The sand will slow the flow of water in the hose. We can say that…

Few home owners really take the time to understand their home's electrical system and how electricians ensure that it is safe. However, by understanding this process and how it applies to your home, you can avoid unsafe wiring and non-compliance situations that can expensive to fix and dangerous to your home. Understanding The National Electrical Code The federal government has created a guideline for electrical wiring safety that is known as the "National Electrical Code." It has been adopted…

daily life activities are powered by electric motors. Motors transform electrical energy to mechanical energy, hence they are essential for energy conversions in electrical machines. All types of electrical motors are made up of a stationary field referred to a stator and a rotating field referred to a rotor. According to Krishnan, (2010), DC motors operate through the interaction of an electric current with magnetic flux to generate a torque and rotational speed. D.C motors are of different…