Kit Library / Science / Physics
⚡ Topic Learning KitShared by a Veda learner · Generated with Veda AI
Veda Bites are swipeable micro-lessons — each one teaches exactly one idea. Here's a taste from this kit; the app has the full deck.
No potential difference, no current.
Electric current flows only when there is a potential difference between two points. The battery or cell creates this difference, pushing charge through the conductor.
↳ Current is the effect; potential difference is the cause.
One ampere, one volt — know them cold.
↳ Ampere measures flow rate; volt measures energy per unit charge.
V equals I times R — never forget it.
At constant temperature, current through a conductor is directly proportional to potential difference across it.
↳ Ohm's law links V, I, and R in one simple equation — rearrange it as needed.
This chapter covers electric charge, current, potential difference, Ohm's law, resistance, and the heating and magnetic effects of current. It builds the foundation for understanding how circuits behave and how electrica…
~20 min · full explanation, examples & memory tricks in the app
18 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which of the following correctly defines electric current?
BeginnerThe rate of flow of electric charge
Electric current is the rate of flow of electric charge, given by $I = Q/t$. The other options describe charge, potential difference and resistance respectively.
A current of 3 A flows through a wire. How much charge passes a cross-section in 5 seconds?
Beginner15 C
Using $Q = I \times t = 3 \times 5 = 15$ C. The other values come from dividing or adding instead of multiplying.
Which instrument is connected in series in a circuit and why?
BeginnerAmmeter, to measure the current through a component
An ammeter is connected in series so that the same current flows through it as through the component being measured. A voltmeter is connected in parallel.
The SI unit of potential difference is the volt. Which expression is correct?
Beginner$1\ \text{V} = 1\ \text{J/C}$
Potential difference is work done per unit charge, so $1\ \text{V} = 1\ \text{J/C}$. The option $1\ \text{C/s}$ is the ampere.
30 flashcards in this kit — the app reviews them with spaced repetition so the right card returns on the right day.
Every game is built from this kit's own content — scores feed your mastery, so playing counts as studying.
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.
