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.
Other symptoms of a miscarriage include: 1  cramping and pain in your lower abdomen. 2  a discharge of fluid from your vagina. 3  a discharge of tissue from your vagina.  no longer experiencing the symptoms of pregnancy, such as feeling sick and breast tenderness.
Change in pregnancy symptoms. Less common but still noticeable symptoms of a miscarriage could include a decrease in pregnancy-related symptoms such as nausea and vomiting or breast tenderness, according to Dr. Rodi. If there's an abrupt change before the second trimester, it may be due to a decrease in pregnancy hormones, she explains.