Exam (elaborations)
PMR Exam 1 Questions And 100% Correct Answers
- Course
- Institution
PMR Exam 1 Questions And 100% Correct Answers...
[Show more]
Content preview
PMR Exam 1 Questions And 100% Correct AnswersFlow of electrons along a conduction medium
What is amperage?
Force that is pushing electrons through an object
What is voltage?
Opposite charges are separate
Like charges are bought together
What can create voltage?
Polarity
What is the term that is used to indicate the relative charge of terminals or leads of a
circuit?
Negative electrode (black)
**A Cation is positive, but a cathode is negative - A cathode attracts cations**
What type of charge is a cathode?
Positive electrode (red)
**A Anion is negative, but an anode is positive - An anode attracts anions**
What type of charge is an anode?
,Resistance - The opposition to the flow of a direct types of current
Impedance - The opposition to the flow of alternating types of current
What is the difference between resistance and impedance?
Impedance
What is the opposition to the flow of alternating types of current?
Resistance
What is the opposition to the flow of direct types of current?
Ohms
What is the measurement of resistance or impedance?
The current in a circuit is directly proportional to the applied voltage and inversely
proportional to the circuit resistance.
Current flow = Voltage/Resistance
I = V/R
What is ohms law?
Muscles
Peripheral nerves
Blood
What tissues in the body are considered conductors?
, Skin
Skin oil
Fat
Hair
What tissues in the body are considered insulators?
Decrease resistance
If you increase temperature of a circuit, will it increase or decrease the resistance?
Decrease resistance
If you increase the cross section of a circuit, will it increase or decrease the resistance?
Increase resistance
If you increase the length of a circuit, will it increase or decrease the resistance?
Phase
What is the term for the electrical event when current departs isoelectric baseline and
then returns?
Monophasic - Direct current
Biphasic - Alternating current
What is monophasic vs biphasic?
Electrical charges are equal above and below the baseline where there is zero net
charge. A balanced waveform doesn't have to be symmetrical.
What is a balanced waveform?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Chrisyuis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67474 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now