A Level Physics Capacitance questionWatch
a the magnitude of the Earth's magnetic field at this position,
b the magnitude and direction of the force on a vertical wire of length 0.80 m carrying a current of 4.5 A downwards.
I'm stuck on part b currently. Any help would be greatly appreciated.
(For anybody who looks at this thread for part a, you can find the magnitude of the magnetic field strength by using Pythagoras's theorem on the components of the field, as they are perpendicular to each other, so sqrt[(18x10^-6)^2 + (55x10^-6)^2])
Do you know the equation for calculating the force on a current carrying conductor in a magnetic field? Because if you do, all that's left is to decide which numbers to put into it.....