{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

E10_2-22-10 - E10 Ohms Law Materials Resistors ammeter...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
E10: Ohm’s “Law” Materials: Resistors, ammeter, voltmeter, power supply, wires, switch Initial definitions and givens: Resistance: the resistance of part of a circuit is defined to be the ratio of the voltage across it divided by the current flowing through it. R (ohms) = V (volts)/I (amperes) This is not Ohm’s “law”, it a definition A resistor is said to “obey Ohm’s law” if R doesn’t change when V is changed. Resistor: a circuit part with a well-defined resistance. Initial Instructions and questions: 1. Make a circuit with the power supply, ammeter, switch, and one of the resistors in series. Place the voltmeter in parallel with the resistor to measure the voltage between its two ends. Vary the output of the power supply so that the voltage across the resistor reads 1, 2, 3, 4, and 6 volts. Record the current through the resistor at each setting. Enter the data in GA and plot. (Careful: Should the voltage or current be the independent variable to be plotted on the x-axis?)
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern