The Motor Effect (F=BIL) | GCSE Physics practice
Calculate the magnitude of the force acting on a wire in a magnetic field.
What is the force if the wire is parallel to the magnetic field?
What is The Motor Effect (F=BIL) | practice?
"The phenomenon where a current-carrying wire in a magnetic field experiences a force ($F=BIL$)."
Magnetic field lines always point from ____.
Why are step-up transformers used in the National Grid?
Increasing the current through a solenoid will ____ its magnetic field.
What happens to an electromagnet when the current is turned off?
Force Equation
Force (N) = Magnetic Flux Density (T) x Current (A) x Length (m).
Magnetic Flux Density (B) is measured in Teslas.
Force is maximum when the wire is perpendicular to the field.
If the wire is parallel to the field, the force is zero.
Calc Trap: Length (L) must be the length of wire INSIDE the magnetic field, and in metres.
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