A straight copper wire carries a current of inside a laboratory electromagnet that…
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A 25cm straight copper wire carries a current of 8.0A inside a laboratory electromagnet that produces a uniform magnetic field of 0.40T. The wire makes an angle of 30∘ with the direction of the magnetic field.
(a) Convert every given physical quantity to its SI base unit before carrying out any further work.
(b) Calculate the magnitude of the magnetic force acting on the wire.
(c) Using an appropriate hand rule, state the direction of the force with respect to the given field and current directions.