nope
The doctor prescribed a placebo to the patient in order to study the effects of the medication.
A placebo has no medical properties at all so, yes, you would be at risk of getting pregnant.
the pill that represented the placebo
Nothing. The placebo is not part of the birth control cycle. It has no purpose except to help keep you in your routine, and keep track of your pill schedule.
Placebo is a dose of an inactive pill or other type of drug, used in drug testing to control for psychological effects of taking medicine. Its use is debated in clinical trials, but the practice of prescribing placebo for patients is far more controversial.
The sugar pills are just placebo pills, meaning that they have no intended purpose other than to act as place holders. Because birth control pills are to be taken every day, some women need the placebo pills to keep the routine going. They offer no other purpose.
Technically, absolutely nothing should happen. A placebo is substance that is meant to deceive the patient into believing they are getting actual medication. Placebo's are most commonly used in drug trials to see if the drug actually works or simply causing a "placebo effect". Which is a psychological response the brain permits when it believes it is being treated. So ultimately the answer to your question is that no, taking large amounts of a placebo won't harm you. Though if you are experiencing placebo effects then it has the possibility of increasing your response to it.
No, the placebo pills are exactly that, placebo. (just sugar pills). It would be like expecting a tic tac to bring on your menstrual cycle. If you are on the pill, the placebo pills will start your cycle because they have no active ingredients. If you think you are pregnant and want your period to come, go to a doctor/do a pregnancy test or take the morning after pill if it's not too late.
In a double-blind test, if the doctor treating a patient knows whether the patient is getting a real treatment or not, they may (perhaps unconsciously) treat the patient differently, or worse let slip that the patient is taking the placebo. This will affect the results (as it changes the effect of the placebo) and can ruin a drug trial.
No, you can't. Every pill is exactly the same on the minipill, and there are no placebo pills to skip.
Placebo is a therapy. It has therapeutic benefits.It is prescribed to patients from misuse (overdosing) of medicines which would disturb the course of action of medcines already undertaking. In homeopathy, a patient has to take small dose of medicine infrequently, he do not need to take medicines everyday.