How Do You Find The Radius Of A Resistance?

How Do You Find The Radius Of A Resistance? R∝LA. R=ρLA. A=πr2. R=ρLπr2. R∝1r2. What is the relation of resistance and radius? However, the cross-sectional area of the wire is proportional to the square of the radius of the wire. This means that the resistance of the wire and radius of the wire is inversely

How Does The Strength Of The Magnetic Field At The Centre Of The Coil Depends On?

How Does The Strength Of The Magnetic Field At The Centre Of The Coil Depends On? 1) if the radius increases the magnetic field lines go farther and farther so the strength of the magnet decrease. 2) if the number of turns increase then the magnetic field lines become denser. So the strength of the