The discussion centers on the application of Faraday's law of electromagnetic induction in relation to a scenario where the period T is halved to T/2. It is questioned whether this change in period results in the induced current also being halved. The relationship between the induced electromotive force (emf) and the rate of change of magnetic flux linkage is emphasized. The conclusion drawn is that a closed loop will indeed generate an induced current due to the induced emf. Understanding these principles is crucial for accurately applying Faraday's law in practical situations.
An emf will be induced in the coil given by Faraday's law
emf = rate of change of magnetic flux linkage
This will give rise to an induced current since there is a closed loop
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook.
Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water.
I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it.
I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction.
I'm not able to figure out, why my solution is wrong, if it is wrong .