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?
Free fall
Why do objects of different masses fall at the same rate when dropped from the same height?
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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