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.
An impending miscarriage will often have some distinct symptoms, such as vaginal bleeding and abdominal cramping, but having these symptoms in pregnancy does not always mean a miscarriage. If you have any of these symptoms, it is important to see a doctor as soon as possible for a medical evaluation.