Transistor does not work in railway carriage. Why?

Transistor-what does it mean ?

Transistor Radio does not work satisfactorily when used inside a railway carriage . a . Justify your answer . b . What happens in a transistor when both the emitter and collector are reverse biased ? c. What is this condition known as ? d. Under what condition a transistor works as an open switch ?

Transistors can work as a switch in

Transistors can work as a switch in

Transistor also works bidirectinaly commment

Two persons go in a railways carriage where there are 6 vacant seats. In how many different ways can they seat themselves?

A simple pendulum is suspended from the roof of a railway carriage. What angle does the string make with the vertical if the carriage travels at a constant speed of 72 km/h around a circular track of radius 100m? Take g=9.8 m//s^2 .

The number of ways in which four passangers be accommodate in three railway carriages,if each carriage can accommodate any number of passangers,is