RESISTANCE‚ AND WHICH ONE HAS THE GREATEST EFFECT. BACKGROUND INFORMATION: Resistance is the force that opposes the flow of electrons in a circuit. The equation for resistance is Ω=V/A. (Ohms equals Voltage divided by amps). Resistivity is a measure of how strongly a material opposes the flow of electrical current‚ There are four main factors that affect resistance: Length – this is because the electrons would bump into more atoms‚ the longer the wire which is like using up its fuel. Material
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7.Area of Sectors and Segments.notebook Arcs‚ Sectors and Segments March 27‚ 2012 Arc - part of a circle’s circumference - measured in degrees or length units. Mar 1710:25 AM Length of an Arc = Mar 1710:28 AM Example: Determine the length of arc AB. A 80 Pull m = measure of central angle in degrees 5 cm B 0 r = radius of circle Mar 1710:30 AM Mar 1710:33 AM 1 7.Area of Sectors and Segments.notebook Sector - part of a circle formed by two radii and an arc. March 27‚ 2012
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The effect of Length on the overall resistance of a circuit. Research question: How does the length of the conductive putty affect the over all resistance of a circuit? This experiment will be discussing how the length of the conductive putty wire affects the overall resistance of a circuit. The variables for this experiment are being used for a number of reasons‚ however one of the main reasons behind choosing this experiment is investing how length of an object is affected be the resistance. The
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Investigating the Resistance Of A Wire A simple investigation of the factors affecting the resistance of a wire. For each student group Cells‚ 1.5 V‚ with holders‚ 2 Crocodile clips‚ 2 Ammeter (0 - 1 amp)‚ DC Leads‚ 4 mm‚ 5 Wire available for class use (see technical notes) Power supply‚ 0 to 12 V‚ DC (OPTIONAL) Metre rule (OPTIONAL) Insulating tape (OPTIONAL) Digital and analogue ammeters‚ 0-1 A (OPTIONAL) Digital and analogue voltmeters‚ 0-12 V (OPTIONAL) Micrometer (OPTIONAL)
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the resistance of a piece of wire; the one I am investing is the length at constant temperature. My objective in this experiment is to investigate one of the factors that affect the resistance of a piece of wire. The factor I chose was length. Factors: There our four different things that affect the resistance of a wire: 1. The Length because the wire is thinner than the rest of the wires the electrons wood have more trouble going through for if the wire had the same width there would
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Physics Coursework - Resistance of a Wire Coursework Introduction (Theory) In this piece of Coursework I am going to investigate the resistance in a piece of wire. Resistance is the force that slows down the flow of electrons; this can be due to electrons colliding. The total length of the wires will affect the amount of resistance. The longer the wire‚ the more resistance that there will be. This is also true for thickness of wire; the thinner the wire is the more resistance. Resistance
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Arc Length The definition of radian measure s = rθ The unit circle An angle of 1 radian Proof of the theorem IT IS CONVENTIONAL to let the letter s symbolize the length of an arc‚ which is called arc length. We say in geometry that an arc "subtends" an angle θ; literally‚ "stretches under." Now the circumference of a circle is an arc length. And the ratio of the circumference to the diameter is the basis of radian measure. That ratio is the definition of π. π | = | C D | . |
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the time period of a pendulum. Research question: How does the length of a pendulum affect its time period? The independent variable is the length. The dependent variable is the time. Controlled variable is the mass of the pendulum bob. Formula for 1 period of oscillation of a pendulum of a certain length is T=2π √lg Where l is length and g is gravity (9.81 ms-2) T2= 4π2 lg T2= 4π2g l Hypothesis: The longer the length of the pendulum is‚ the longer the time that is needed
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meters of varnish insulated copper wire with diameter 0.5mm PVC pipe- 300mm length 3- 1.5 volt batteries with casing 3- jumper wires with crocodile clips Multimeter Scissors Infrared Thermometer 1 roll of insulation tape Procedure 1. Wind the wire around the PVC pipe. Fix the ends of the wires to the insulation tape. Remove about 3 cm. of insulation from the wire using the tips of the paper knife. Measure the resistance of the wire using the ohm setting on the multimeter
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The Lengths of Leadership This Freshman Seminar displayed the power of leadership in all of its forms. There are many types of leadership skills and characteristics; however‚ they all are encompassed by a set of core values one must follow to be a leader. We explored what could be called the ten commandments of leadership during class discussion and how they applied to a series of movies including Apollo 13‚ Courage Under Fire‚ Norma Rae‚ and Cry Freedom. In each movie‚ every character showed a
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