Electric current

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    The objective: 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 electrical current, what you want to know, and what you have learned. What do you know about electrical current? Is electricity something that can be seen? Can someone tell me what is electricity? Can you give me examples of electric current? Students I have a discrepancy event that I want you all to see. The materials that we need for this event is a battery, copper wire, and magnets. Can you think of a way that we can make…

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    Ohm’s law is the basic rule of the electricity that explains the relationship between electric current, voltage, and resistance. The ohm’s law was named after the German physicist Georg Ohm who discovered this rule or law. Ohm’s law statement Ohm’s law states that the electric current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance. In other words, the electric current flowing through the conductor increases with increase in…

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    partner and I are going to test is, do different brands of batteries affect the electric current of an electromagnet? Electromagnets are magnets that can be powered on and off, they can do simple tasks such as ring doorbells to surgically pull a steel splinter from your eye (Stringer). There are many factors that may affect the way electricity flows throughout metals. For example, the number of coils wrapped around the metal object may affect its magnetic strength. Another factor may be the size…

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    Q. Why do wire and a compass work to detect electric currents? A. I’m going to start off with the basics here. A compass points north. Everyone knows that. Why does it point north? Well, all magnets have two “poles” or ends. One end of the magnet is called the north-seeking pole. The north-seeking pole is often abbreviated to north pole or the letter N. The north pole end of a magnet is usually colored red. The other end of a magnet is called the south-seeking pole. The south-seeking pole is…

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    was almost as fast as getting a texting back but the process of sending the message was a hastle. Having to decode the set of dashes, dots, and lines took minutes maybe hours and just as long to write another and tap the transmission key according to each letter in your message. The telegraph improved communication systems during the Industrial Revolution, gave a light to inventors, looking for new ways to communicate, and has impacted us in today’s society. The telegraph was developed in the…

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    born in London on September 22, 1791. He was the first person to produce an electric current from a magnetic field, He discovered diamagnetism and explained why some substances react opposite to a magnetic force when they encounter a magnetic field. He also discovered the effect of magnetism on light and he invented the electric generator and the electric motor.…

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    Encyclopædia Britannica, n.d). It is, therefore, reasonable to assume that a human could do 67% of this amount of work for a shorter amount of time. Generator What would happen to the force required to turn the generator if the bulb was taken out? Why? Of the bulb was taken out of the generator then the amount of work required to turn the generators handle would be decreased because generators create electrical energy by creating a changing magnetic field. This works by moving a copper coil…

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    Nt1310 Unit 5 Lab Report

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    The resistors R1, R2, RD, and RS calculated in the Prelab section were used to connect the circuit as shown in Figure 8-5. A load resistance RL of 10kΩ was used. The values of VD, VG, VS were measured and recorded. 3. The voltage vout was measured using an oscilloscope and the voltage gain AVG-D = vout/vin was calculated. The input voltage was adjusted if the output waveform was distorted. 4. The function generator was varied to obtain the necessary data to plot a frequency response curve for…

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    neurological practices. Some assumed that hearing that they would receive shock treatment, that it would be a painful method. Some thought it was a form of electrocution, and others thought it would cause them brain damage. Also, the media didn’t help to the added fears with its misinformation on the procedures. I’ve seen this type of therapy on movies and it seem a kind of punishment more than a treatment and it looked scary and painful. The media gave me a false perception on this type of…

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    How Does A Frog Twitch

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    *** Luigi Galvani used an electrostatic machine that produced sparks on frog legs and began to investigate the muscular contractions produced by electricity. Galvani discovered that the frog leg would contract if a scalpel touched the frog’s nerves when the machine was on.
 More comprehensive experiments by Galvani showed that a dead frog’s leg could be made to twitch by electrical stimulation. Galvani also showed that the same twitching could be produced by touching the leg with a copper hook…

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