Volts and amperage together basically combined in a formula to determine the number of watts, but they are not specifically related to each other. As per Ohm's law V=IR where V is voltage, I is current and R is resistance. since Voltages is equal to current times resistance than makes them directly proportional to each other and therefor related.
Cervical Position. During menstrual bleeding, the cervix is normally low and hard and slightly open to allow the blood to flow out. It feels like the tip of your nose. After your period stops, the cervix remains low and hard and the opening to the uterus (uterine os) remains closed.
Mine felt open fairly often all the way until about 10 weeks or so. Then it got really soft and the OS basically disappeared, but feels very closed. I googled open cervix at X weeks a zillion times, lol. After 3 miscarriages in a row I checked often, I wanted to be prepared if something were going to happen.