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Current trends in community health nursing?
The current trends are changing in demographics, diversity, expanding technology, complexity of patient care, cost of health care changing and the nursing shortage.
Why does a transformer require alternating current?
In order to induce voltage as an output, a changing magnetic field is needed. To create a changing magnetic field in the transformer a changing current and that is an alternating current.
What are 3 ways to change characteristics of a magnetic field by an electric current?
By changing the magnitude of the current flowing through the conductor. By changing the direction of the current flow in the conductor. By changing the orientation or shape of the conductor carrying the current.
What are the current trends in database technology?
current trend in technology? Or currrnt trend in day today life?
Changing alternating current to direct current is called?
Rectification
What is alterneting current?
a current that keeping on changing its polarity with time is called alterneting current
Why can't present technology cannot answer all questions regarding hurricanes?
Current computing power is not fast enough to deal with the vast number of constantly changing variables involved in a hurricane.
What are the current trends in mobile technology?
The latest trend in mobile technology is the 4g service, which allows for even faster data and internet speeds. Other current trends are the usage of applications, or apps, on your mobile device and GPS technology.
When is a belief or practice said to be related to science and technology?
When it is rational and therefore based on current understanding. Doesn't mean it is always correct, so belief can change with changing scientific knowledge.
Will man be able to explore beyond the solar system?
Perhaps. With current technology, that seems difficult; but technology may improve over the next few decades, or centuries.Perhaps. With current technology, that seems difficult; but technology may improve over the next few decades, or centuries.Perhaps. With current technology, that seems difficult; but technology may improve over the next few decades, or centuries.Perhaps. With current technology, that seems difficult; but technology may improve over the next few decades, or centuries.
Are Transformers used in circuits with Direct Current?
No. Transformers are used in circuits with Alternating Current. Transformers work on the principle of a "changing" magnetic field inducing a current in a conductor, and you don't get that "changing" field with Direct Current.
Why wont a transformer function when supplied with direct current?
Transformers work on a principle called 'mutual induction' in which a changing current in one coil sets up a changing magnetic flux which links with a second coil, inducing a changing voltage into that second coil. I've emphasized the words 'changing' because its essential if mutual induction is to take place. Alternating current is a type of current that is constantly changing in value and direction, whereas direct current is a constant current -so transformers require a.c. to operate.
