An n-p-n transistor in a common-emitter mode is used as a simple voltage-amplifier with a collector-current of 4mA. The terminals of a 8V battery is connected to the collector through a load-resistance RL and to the base through a resistance RB. The collector-emitter voltage VCE = 4 V, the baseemitter voltage VBE = 0.6 V and the current amplification factor βdc = 100. Then
(a) RL = 1 kΩ, RB = 185 kΩ
(b) RL = 2 kΩ = RB
(c) RL = 2 kΩ, RB = 15 kΩ
(d) RL = 185 kΩ, RB = 1 kΩ
