Physics: Electric circuits. Resistors (12)

Physics: Electric circuits. Voltage sources and drops.Current. Current and voltage for circuit elements in series or parallel. Kirchhoff’s loop law; Kirchhoff’s node law. Resistance. Ohm’s law. Equivalent resistance for resistors in series or parallel This is a recording of a tutoring session, posted with the students’ permission. These videos are offered on a “pay-what-you-like” basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a printable document containing the handout discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: www.youtube.com (1) Review of previous concepts (2) Voltage (3) Conventional current flow (4) Current and voltage (5) Continued. Current and voltage for circuit elements in series or parallel (6) Continued (7) Continued (8) Continued. Kirchhoff’s loop law; Kirchhoff’s node law. Resistance. Ohm’s law (9) Continued (10) Equivalent resistance for resistors in series or parallel (11) Continued (12) Continued

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AC Circuits Theory Part 1

This clip gives the theory of alternating current (AC) sources connected to a resistor, inductor and a capacitor or any combination of them. (Part 1)

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GCE (A-level) Physics E22 Power in Electrical Circuits – Part 2 of 2

Learn how to find power and energy in electrical circuits. Concetrated on ‘P=I-squared times R’ and ‘P=V-squared over R.

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Physics 300 Final Project

This is my final project for my Physics 300 class. The overall purpose of the circuit is to help teach students how to convert a Base 10 number into Base 2 (binary). One starts by selecting a random voltage via the 1k potentiometer and then converting it to a useful base 10 number via dividing it by the step size (19.23 mV in this case). One then converts the number to Binary and inputs their number on the 8 logic switches. If their guess is too low, the green lights light up. If your guess is too high, the red lights illuminate. If You guess correctly, the lights flash. The circuit was made using: 8x Logic Switches 1x Debounced Switch 1x TTL Generator (for the flashing) 1x 1k, 1W resistor 1x 10k, 1/4W resistor 1x 100pF capacitor 1x 1k potentiometer 1x ADC080x analog to digital chip 2x 7485 Magnitude Comparator chips 1x 74150 Multiplexer chip 8x logic level LEDs

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Adding resistors to electric circuits (3)

Physics: Adding or dropping resistors to electric circuits, in series or parallel–effects on equivalent resistance, current, voltage, and power. This is a recording of a tutoring session, posted with the student’s permission. These videos are offered on a “pay-what-you-like” basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: www.youtube.com (1) Problems involving adding or dropping resistors to electric circuits (2) Continued (3) Continued (4) Continued

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