Physics
State two factors upon which the rate of emission of thermions depends.
Related Questions
State two causes of energy loss in a transformer.
State two characteristics of a good thermion emitter.
When does the nucleus of an atom tend to be radioactive?
A uniform half metre rule balances horizontally on a knife edge at 29 cm mark when a weight of 20 gf is suspended from one end.
(i) Draw a diagram of the arrangement.
(ii) What is the weight of the half metre rule?