ACADEMIC CENTRE OF EXCELLENCE (ACE) - PHYSICS 9702

An electron starts from rest from the bottom plate in  Fig. 17.11 . The potential difference across the plates is 1600 V and the separation ...

Calculate the speed of an electron accelerated from rest through a distance of 40 mm by a uniform electric field of 3.0 × 10 3  N C −1 . S...

Solution: Reference:   Past Exam Paper – Oct Nov 2015 Paper 42 Q1

(a)  Define gravitational potential. (b)  Explain why values of gravitational potential near to an isolated mass are all negative. ...

A rigid L-shaped lever arm is pivoted at point P. Three forces act on the lever arm, as shown in the diagram. What is the magnitude of...

In a simplified model, a uranium nucleus is a sphere of radius 8.0 × 10 −15  m. The nucleus contains 92 protons (and rather more neutro...

(a) State the name of an electrical sensing device that will respond to changes in (i) length, (ii) pressure. (b) A relay is sometimes u...