The emitter diode of the transistor is forward biased by applying the required positive base bias voltage via the current limiting resistor RB. Assuming a standard bipolar transistor, the forward base-emitter voltage drop will be 0.7V. Then the value of RB is simply: (VCC â VBE)/IB where IB is defined as IC/Î².
Symptoms of a miscarriage include: 1  Bleeding that progresses from light to heavy. 2  Cramps. 3  Abdominal pain. 4  Fever. Weakness. 5  Vomiting. Back  pain.
How do I know if Iâm having an early miscarriage? The most common signs and symptoms of miscarriage are vaginal bleeding and strong period-type cramps (MA 2015, NHS 2015). The bleeding can vary from light to heavy, perhaps with blood clots, and may come and go for a few days (NICE 2013). Sometimes, symptoms settle down and the pregnancy usually carries on.