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.
1 If you've had a miscarriage you may notice less morning sickness, less swelling and tenderness of the breasts, and a feeling of no longer being pregnant. 2  In healthy pregnancies, these early symptoms often subside on their own at about 13 weeks, which is also the time miscarriage risk decreases.