I want to solve a graph and discuss Ohm's law Experiment number (1)Ohm's LawObjective:Verifying Ohm's Law and determine the resistance constant value.Apparatus:Power supply, ammeter, voltmeter, resistance, conducting wires.Theory:Georg Simon Ohm (1787-1854), a German physicist, discovered Ohm's law in1826. This is an experimental law, valid for both alternating current (ac) anddirect current (de) circuits.When you pass an electric current (I) through a resistance (R) there will be anelectric potential difference (V) created across the resistance as shown below.Ohm's law gives a relationship between V, I aud R as follows.V=IRUnits: V- volt (V), I- ampere (A), Rohm (N).So Ohm's law states that the current through a conductor between two points isdirectly proportional to the potential difference or voltage across the two points,and inversely proportional to the resistance between them.For Ohmic resistances, Vversus I is a lincar relationship, and they have aconstant resistance. Resistance can be calculated using the Ohm's law, R = VII.The slope of the V versus I, line will also give the resistance, R.or non-Ohmic resistances, V versus I is a non-linear relationship, and they haveA varying resistance. The resistance at a particular point can be calculated usingOhm's law, R = V/I, where V and I are the voltage and current at that point. Stop - RVHon-chumicA26ہم8+10012Fig (1): the relation between the Ohmic & non - Ohmic resistance.The electrical resistance (R) of a device is defined to be the ratio of the voltage(V) across the device to the current (i) through the device R = V/I. The unit ofresistance, ohm (2, the Greek letter capital omega), is then defined to be theresistance when one volt exists across and one amp flows through the device, 2 =YIA.VFig (2): circuit diagramIProcedures:i. Connect the apparatus as shown in Fig (2), The power supply (PS) has acontrol so that by rotating it the voltage across the resistor (and hence thecurrent through the resistor) can be varied from zero to some maximum value.2x A2. Adjust the power supply to zero volts before connecting ,Then apply voltagevab:e at about (2, 4, 6, 8, 10) V intervals.8x1₂-31X10²1.Exlo3. Notice the change in the current, then record readings of current for eachvalue of applied voltage.SwitchplerCalculation and results:Plot a graph of voltage (ordinate or vertical axis) and current (abscissa orhorizontal axis), and determine the resistance constant value by computing theslope of the best straight line through the points.Slope V/I=Rn

Answered: Image /qna-images/answer/dc171ab1-cae8-4a6a-90cf-b27a838a0902.jpg

Plot a graph of voltage (ordinate or vertical axis) and current (abscissa or horizontal axis), and determine the resistance constant value by computing the slope of the best straight line through the points.

Plot a graph of voltage (ordinate or vertical axis) and current (abscissa or horizontal axis), and determine the resistance constant value by computing the slope of the best straight line through the points.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 35Q: (Indicates a review question, which means it requires only a basic understanding of the material to...

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