A.2.14—Electric force Fe Topic Practice
A.2.14—Electric force Fe Topic Practice
Practise treating electric force as the force on a positive test charge and resolving forces when a charged object is in equilibrium.
How this is tested
- resolve tension into vector components and use trig to calculate the horizontal electric force on a ball
- state that F_e is the force on a small positive test charge, not just a force between charges
- in the particle rest frame, identify the interaction as an electric force due to an electric field