Potential Difference
Why do charges flow only when there's a potential difference?
Difference between speed & velocity
Why do we say a car moving in a circle at constant speed still has a changing velocity?
Kirchoff's Laws
What are Kirchhoff's current and voltage laws?
Acceleration in daily life
When you press the accelerator in a car, what's actually happening in terms of physics?
Wheatstone Bridge
Why is the Wheatstone bridge used for measuring resistance?
Distance vs displacement
Two friends walk 3 km east and then 4 km north. What's the difference between distance and displacement here?
Galvanometer Conversion
How can a galvanometer be converted into an ammeter or voltmeter?
Magnetic Force
Why does a current-carrying conductor placed in a magnetic field experience a force?
Newton's first law
Why do you lurch forward when a bus suddenly stops?
Fleming's Left-Hand Rule
How do you use Fleming's left-hand rule to find the direction of force?
Friction as friend & foe
If friction slows us down, why don't we get rid of it completely?
Electromagnetic Induction
What is electromagnetic induction?
Projectile motion
Why does a cricket ball follow a curved path when hit into the air?
Eddy Currents
What are eddy currents and where are they useful?
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