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.
First Signs of Miscarriage. One of the first signs of miscarriage is vaginal bleeding. Up to 25 percent of all pregnant women have bleeding at some point in pregnancy, about half of those will have a miscarriage. Bleeding that is a sign of miscarriage may be scant or heavy.