Recent content by westerman16

Thanks for all your help, i can do it now. I ran the calibration idea with my teacher and it was all good. using a solanoid to calibarate the probe, using the equation, then plotting the points cheers guys

im still really unsure if there's some super clever physics people around, hint hint, to come and help us

hey I am doing same planning exercise OCR right i don't think you need the restivity of the brick, you just have to measure the p.d across the brick and the current at each different temp to find the resistance, hence you don't needs its restivity. fixing wires to a brick I am still not...

iv seen that equation befor so i think your on the right lines, ill have a look into it and speak to my teacher tomora too

ok i understand what your saying so if i have a solenoid electromagnet, to calibrate the probe do i simply place it in the magnetic field? surely i have to take some sort of readings so i can calibrate it to measure the magnetic flux density between two bar magnets??

i guess i havnt put this very well. iv got a planning exercise to complete init it says. 1 calibrate an uncalibrated hall probe to measure magnetic flux density 2 use the calibrated hall probe to investigate how the magnetic flux density mid-way between opposite poles of two permanent bar...

the lab is basically a school lab i think i have to use helmz colt coils to calibrate to probe but I am not sure how you do this. does anyone know what to do

For a planning exercise i have to calibrate a hall probe to measure the magnetic flux density mid-way between opposite poles of two permanent bar magnets. anyone know how to calibrate a hall probe so that i can do this experiment?