Practise predicting force, acceleration, direction and path of positive or negative charges in a uniform electric field, relating motion to charge, mass and field.
Two parallel metal plates X and Y are separated by a distance of 0.041 m , as shown in Fig. 6.1.
Fig. 6.1
There is a vacuum between the plates. An electron is at rest at the centre of plate X.
A potential difference (p.d.) of 58 kV is applied across the plates. This causes the electron to accelerate towards plate Y.
On Fig. 6.1, use the symbols + and - to indicate which of plates X and Y is the positive plate and which is the negative plate.