In the working of a transisor, emitter-base junction is forward biased while collector-base junction is reverse biased. Why?

In a transistor emitter-base junction is always forward biased while the collector-base junction is reverse biased. Why ?

If a p-n junction is reverse biased then

Consider an n-p-n transistor with its base - emitter junction forward biased and collector base junction reverse biased . Which of the following statements are true?

Consider an n-p-n transistor with its base - emitter junction forward biased and collector base junction reverse biased . Which of the following statements are true?

Consider an n-p-n transistor with its base -emitter junction forward biased and collector -base junction reverse biased. Which of the following statements are true ?

Consider a npn transistor with its base-emiter junction forward biased and collector base junction reverse biased. Which of the following statements are true?