Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

When you speak, sound waves created by your voice carry energy toward the microphone. Inside the microphone, the diaphragm moves back and forth when the sound waves hit it. The coil, attached to the diaphragm also moves back and forth. The permanent magnet produces a magnetic field that cuts through the coil. How Electret Microphones Work. With the diaphragm and the back plate ready to receive sound waves, they work by letting the incoming sound waves from a source of sound from any direction to change the capacitance between the two conducting plates. March 31, 2015. A carbon mic is a simple device to turn sound waves into an electronic signal. Carbon microphones were used in telephones, radio broadcast systems and many other devices through the 80s. microphone’s directional sensitivity, which is how a microphone picks up sound from different directions. These are the three most common polar patterns: CARDIOID These patterns pick up the most sound from in front of the microphone and some from the sides They are less susceptible to feedback in loud environments. SUPERCARDIOID Or you could amplify (boost the size of) the current and then feed it into a loudspeaker, turning the electricity back into much louder sound. That's how PA (personal address) systems, electric guitar amplifiers, and rock concert amplifiers work. If you are having problems with getting your microphone to work, make sure it is compatible with Windows 7 and that you download all necessary drivers for your microphone prior to use. References (1) HP: Resolving Microphone and Line-in Problems (Windows 7) However the acoustic transparency, particularly at HF, should also be indicated, since a very high level of wind attenuation could be associated with very muffled audio. 1  Various microphone covers. 2  Two recordings being made—a blimp is being used on the left.  3 Dead cat and a dead kitten windscreens. Phillip Corcoran. 1  Probably because your laptop has a combo single jack that performs both tasks (mic & earphones), whereas your PC has separate jacks for mic and earphones, but headset only has a single (combo jack-plug. In a microphone, there are almost identical parts but they work in exactly the reverse way. How microphones work How does a microphone turn sound energy into electrical energy? A: A wireless microphone works by using a wireless transmitter, which is incorporated into the microphone or attached to a body pack transmitter. The battery-operated wireless transmitter includes an antenna for broadcasting sounds. Query: how does a microphone work
A wireless microphone works by using a wireless transmitter, which is incorporated into the microphone or attached to a body pack transmitter. The battery-operated wireless transmitter includes an antenna for broadcasting sounds.

The expiration date is a guideline, and most products are good for a short while after expiration if they have been properly stored; but you should not depend in it. If its just a few days then it is probably still okay. Try tasting it and if it tastes strange then discard it. up vote -1 down vote favorite. Apple juice unrefrigerated, canned, and unopened lasts 1-1.5 years in the pantry but only .75-1 year in the freezer according to stilltasty.com. Blackberry juice lasts as long as apple juice does in pantry and freezer if it is unrefrigerated, canned, and unopened. Cranberry juice cocktail lasts in the pantry for six to nine months. The juice will last for the same amount of time in the refrigerator. Ocean Spray cranberry juice stays fresh in the pantry for two... Cranberry juice cocktail lasts in the pantry for six to nine months. The juice will last for the same amount of time in the refrigerator. Ocean Spray cranberry juice stays fresh in the pantry for two to three weeks. If the juice develops a sour smell, it is no longer safe to drink. We do not recommend freezing cranberry sauce, as after thawing, it may become too watery. How long can I store your juices and cocktails if they haven't been opened? Unopened products under normal storage conditions should remain acceptable from six to 12 months from the time they are manufactured. I can't seem to find an expiration date of this cranberry juice that has been sitting in the back of my parents fridge for at least 5-6 months. It's unopened, so I think it's safe. It's Ocean Spray Cran-Apple for the record. Prob going to drink it anyways but I still wonder how long it's good for. What are the small particles found at the bottom of Lakewood Organic Pure Concord Grape Juice? What does Best By mean? Occasionally some bottles of Lakewood juice will leave a stain on the inside of the bottle. Why does this happen? Do Lakewood products contain any of the Eight Major Food Allergens? Juice, bottled (apple or cranberry) Unopened: 8 months from production date Opened: 7 to 10 days. Ketchup. Unopened: 1 year (After this time, color or flavor may be affected, but product is still generally safe to consume.) Opened or used: 4 to 6 months (After this time, color or flavor may be affected, but product is still generally safe to consume.) Cranberry juice cocktail lasts in the pantry for six to nine months. The juice will last for the same amount of time in the refrigerator. Ocean Spray cranberry juice stays fresh in the pantry for two... Cranberry juice cocktail lasts in the pantry for six to nine months. The juice will last for the same amount of time in the refrigerator. Ocean Spray cranberry juice stays fresh in the pantry for two to three weeks. Keep Learning. How long does unopened cranberry juice last? The precise answer to the question depends to a large extent on storage conditions - store unopened cans or bottles of cranberry juice in a cool, dark area. To extend the shelf life of unopened cranberry juice, keep unopened cranberry juice away from direct sources of heat or light. O shelf stable beverages juices, soda, water and other drinks designed to be stored oct 14, 2013 how long do things in your fridge stay good after their expiration even beer will last safely the printed date aug 11, 2017 technically, e liquid does have an expiry but it doesn't go bad per se. Ok to drink orange juice past the expiration date? Query: how long will unopened bottled cranberry juice last after expiration
Juice, bottled (apple or cranberry) Unopened 8 months from production date.

Not true all the time. I had a miscarriage, and 2 weeks later ovulated and became pregnant. I read that your HCG levels have to go back down to 0 for you to even ovulate. The doctors thought I was pregnant due to remnants too, but had my blood taken and at 3 weeks pregnant, they were over 250. I am also having twins! PLEASE NOTE: If you are not yet pregnant click here to check out one of our other pregnancy communities. Last Reply: How long dose a positive pregnancy test show after giving birth However, since hCG levels are near their peak at about 10 to 12 weeks LMP, hCG levels may still be high enough 2 weeks following an abortion that pregnancy tests—both blood-based and urine—will still be positive. Sensitive pregnancy tests, including commonly-used office or home use urine test kits are likely to be positive between 16 to 60 days. If you have been given an hCG injection (Profasi, Pregnyl) to trigger ovulation or to lengthen the luteal phase of your cycle, trace hCG amounts can remain in your system as long as 10-14 (sometimes even more) days after your last injection. Head over to this page: https://messageboards.webmd.com/family-pregnancy/f/pregnancy/ 2. Choose the tag from the drop-down menu that clicks most with you (and add it to any posts you create so others can easily find and sort through posts) The human chorionic gonadotropin (hCG) test is done to check for the hormone hCG in blood or urine. Some hCG tests measure the exact amount. Some just check to see if the hormone is present. If you continue to have a positive blood pregnancy test, there is a possibility that you are: Pregnant again; Experiencing an incomplete miscarriage; Experiencing a molar pregnancy (very rare) Pregnant Again. If you have been sexually active and have a positive pregnancy test soon after a miscarriage, it's also possible that you might be pregnant again. Human chorionic gonadotropin (hCG) is a hormone produced by the placenta of a pregnant woman. Early in pregnancy, the level of hCG increases in the blood and is eliminated in the urine. A pregnancy test detects hCG in the blood or urine and confirms or rules out pregnancy. During the early weeks of pregnancy, hCG is important in maintaining function of the corpus luteum. As you can see, after an abortion the hCG levels remain up for as long as 60 days. Following an abortion a positive pregnancy test may occur for as long as 60 days post abortion when the termination procedure was successful. The following two paragraphs come from the 19the edition of Contraceptive Technology. I took misoprostol two days later. About 1 week later my hcg was 1000. 1.5 weeks later is was 600. 2.5 weeks later it was 130. 2 weeks later it was 73. 3 weeks later it was 14. 1.5 weeks later it was finally back to zero. That is 11 weeks of testing ladies. 3 or 4 days after I tested at 0 I got my first AF after my miscarriage. Query: how long is hcg positive after pregnancy

HCG is positive as long as 60 days  after pregnancy.

