100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Biophysics Exam 3 || with Accurate Answers 100%. CA$15.62
Add to cart
Quickly navigate to
Preview
  2.  
  3. Biophysics
  4.  
  5. Biophysics

Exam (elaborations)

Biophysics Exam 3 || with Accurate Answers 100%.
 2 views  0 purchase
  • Course
  • Biophysics
  • Institution
  • Biophysics

2 laws of magnetism correct answers 1. like poles repel each other, unlike poles attract each other 2. Gauss' Law Gauss' Law correct answers The strength of a magnetic field is: -proportional to the product of the pole strengths between 2 magnets -inversely proportional to the square of the ...

[Show more]

Preview 2 out of 5  pages

Document information

  • December 15, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • 2 laws of magnetism

Written for

  • Biophysics
  • Biophysics

Seller

avatar-seller
FullyFocus

Reviews received

Content preview

Biophysics Exam 3 || with Accurate Answers 100%.
2 laws of magnetism correct answers 1. like poles repel each other, unlike poles attract each
other
2. Gauss' Law

Gauss' Law correct answers The strength of a magnetic field is:
-proportional to the product of the pole strengths between 2 magnets
-inversely proportional to the square of the distance between the 2 poles of the magnet (Inverse
Square Law)

Which of the following devices can increase or decrease voltage by a set amount?
battery
capacitor
transformer
A & C correct answers transformer

the idea that electricity could be induced in a wire by moving it through a magnetic field was
discovered by:
Faraday
Roentgen
Tesla
Oersted correct answers Faraday

reducing the # of coils in a secondary wire will result in:
increased voltage
reduced voltage
no effect on voltage
decrease current correct answers reduced voltage

a device that converts mechanical energy into electrical energy is a:
motor
generator
transformer
electromagnet correct answers generator

A step-up transformer results in:
decreased current
decreased voltage
A&B
none of the above correct answers decreased current

The autotransformer:
uses self-induction
uses 2 coils of wire
does not use a magnetic core

, is not usually found in an x-ray machine correct answers uses self induction

With alternating current, the north and south poles of the magnetic field surrounding the wire
change each time the electrons change direction.
True
False correct answers True

If the voltage on the primary side of a transformer is 100 volts, and the turns on the primary side
is 50 windings and the secondary side is 150, what will change?
the voltage will increase to 200
voltage will decrease to 25
amperage will double
amperage will decrease to 1/3 correct answers amperage will decrease to 1/3

if the secondary coil of a transformer has less windings than primary coil, it is an
autotransformer.
True
False correct answers False

An alternating current is represented by a ____ line.
sinusoidal
horizontal
vertical
descending correct answers sinusoidal

In a series circuit, what can not change throughout the circuit?
resistance
amperage
voltage
power correct answers amperage

The flow of electrons along a conductor is:
electric current
electrostatics
electric potential
resistance correct answers electric current

A flashlight holds two 1.5 volt batteries in series for total EMF of 3 volts. The current flowing
when the flashlight is turned on is 0.5 amp. How much electrical resistance is being given by the
flashlight's bulb and wires? correct answers 6 ohms

If a circuit contains 30 ohms of resistance with 60 volts applied, the current following will be:
correct answers 2 amps

Milliamperes is the unit used to measure correct answers the flow rate of electrons in a circuit

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 FullyFocus. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$15.62. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

56326 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$15.62
  • (0)
Add to cart
Added