The correct relation between a (ratio of collector current to emitter current) and b (ratio of collector current to base current) of a transistor is :
(1) \(\beta=\frac{\alpha}{1+\alpha}\)
(2) \(\alpha=\frac{\beta}{1-\alpha}\)
(3) \(\beta=\frac{1}{1-\alpha}\)
(4) \(\alpha=\frac{\beta}{1+\beta}\)