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Your slide · English

The Clausius inequality

∮ δQ/T ≤ 0

Momoहिन्दी

आसान भाषा में: पूरे cycle में δQ/T का जोड़ कभी zero से ज़्यादा नहीं होता।

You missed this in the quiz, so we’ll go slow here.

  1. MomoResistance is the opposition a material puts up against the flow of current, and it is measured in ohms.
  2. MomoThe resistance of a wire depends on three things: the material itself, which we describe by a number called resistivity rho; the length of the wire; and how thick it is, meaning its cross-sectional area.
  3. MomoA longer wire resists more, so R increases when L gets longer.
  4. MomoSo you have three key quantities: voltage is the push, current is the flow, and resistance is what opposes it.

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POV: your slides finally explain themselves.

A real lesson, recorded from PadhAI. Momo teaches a first-year Ohm’s law lecture out loud, chalking the notes and arrows onto the board in time with every sentence, writing out each word as she says it, and walking over to point at the note she is on.

Stop Momo any time to ask something — by voice, or by typing — and get an answer before the lesson carries on. 29 seconds, from the sample lecture every account starts with.

VTUANNA UNIVERSITYAKTUMUMBAI UNIVERSITYJNTUSPPUDELHI UNIVERSITYKTURGPV

it’s literally four steps

Drop the PDF. Momo does the explaining.

  1. 1Step 1 of 4

    Upload your slides.

    Or a PDF, photos of the board, or a class recording.

    Drop your slides here

    ohms-law-sample.pdf

    12 pages

    Uploaded
    PDFPowerPointPhotos of the boardA recordingPasted text
  2. 2Step 2 of 4

    Momo reads every page.

    She teaches only what is in your slides.

    Page 3 of the sample lecturep.3
    Page 5 of the sample lecturep.5
    Page 6 of the sample lecturep.6
    Page 8 of the sample lecturep.8
    Page 9 of the sample lecturep.9
    Page 10 of the sample lecturep.10
    Momo has read12 of 12 pages
  3. 3Step 3 of 4

    She teaches it out loud.

    And draws the notes on a board as she speaks.

    Watch it happen · 29 sec
    Momo's chalkboard part-way through a lesson: chalk notes for voltage, resistance and resistivity joined by arrows, Momo pointing at the Resistance note, and what she is saying written out below

    A frame from a real lesson. The notes are chalked up as Momo speaks.

  4. 4Step 4 of 4

    Stuck? Interrupt her.

    Ask in English, Hindi or Hinglish. She answers, then carries on.

    detour

    Series Current Property

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    Resume lesson

wait, there’s more

Notes, flashcards and a quiz. Already made. You did nothing.

The sample lecture

Ohm’s Law and Simple Resistive Circuits

12 pages · 19 cards · 11 questions

Notes

10 SECTIONS

Ohm’s Law

  • V = I R, at constant temperature
  • Raise the voltage and the current rises with it
  • Raise the resistance and the current falls

FROM PAGE 6 OF YOUR SLIDES

Each note says which page it came from.

Cards

19

FRONT

Which direction does conventional current flow?

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Spaced, so the ones you miss come back sooner.

Quiz

11 Q

Two identical 6 Ω resistors in parallel have equivalent resistance:

  • 3 Ω
  • 6 Ω
  • 12 Ω

Answer, and see why.

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