# Magnetism + Calculus + Mechanics = Megatulics

**Electricity and Magnetism**Level 4

**Super Conducting**Square Loop ( having negligible resistance ) and has Self inductance "L" and has mass of "m" and side length \(l\) is released from rest in the gravity from the height "H" at time t=0.There is an infinitely Long current carrying wire which is in Same Plane of that of Square Loop and current \({ I }_{ 0 }\) flowing in it.

Then Find The **Velocity** of the square loop when it is at height of \(\frac { H }{ 4 } \)
from the wire.

**Details and assumptions**

\(\bullet \quad m=1\quad kg\\ \bullet \quad L=10\quad henry\\ \bullet \quad l=1m\\ \bullet \quad { I }_{ 0 }={ 10 }^{ 7 }\quad Amp.\\ \bullet \quad H=2\quad m\\ \bullet \quad g=9.8\quad m/{ s }^{ 2 }\).