NSCS 307 Exam 1 Questions With Correct Answers 2024/2025
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Course
NSCS 307
Institution
NSCS 307
NSCS 307 Exam 1 Questions With Correct Answers 2024/2025
Define the following terms: voltage, current, resistance, capacitance - ANS-Voltage - Difference in
electrical potential that causes charges to move
Current - The movement of charge
Resistance - Ability of a substance/material to resist ...
NSCS 307 Exam 1 Questions With Correct Answers 2024/2025
Define the following terms: voltage, current, resistance, capacitance - ANS-✔✔Voltage - Difference in
electrical potential that causes charges to move
Current - The movement of charge
Resistance - Ability of a substance/material to resist the flow of charge
Capacitance - ability of a substance/material to store and separate charge
What is the difference between a series and a parallel circuit? - ANS-✔✔In a series circuit, current flows
through one path.
In a parallel circuit, current is separated between multiple paths.
What is the relationship between resistance and conductance? Can you have one without the other. -
ANS-✔✔They have an inverse relationship. You can not have conductance without resistance and vice
versa.
What is Ohms law and how does it apply to electrical circuits? What about neurons? - ANS-✔✔V=IR
If a series circuit has a 10 V battery, what is the current through it if it has:
a) one 5 ohm resistor
b) three resistors (3W, 6W, 4W) - ANS-✔✔DO MATH
If a parallel circuit had three paths ( 3W, 6 W, and 4W respectively), What would the current through
this circuit be with a 10 volt battery? - ANS-✔✔DO MATH
, What is a capacitor? - ANS-✔✔A substance/material which stores and separates charge.
In a series electrical circuit how do capacitances add up? In a parallel circuit? - ANS-✔✔Series - Add
inversely, and then fraction is flipped
Parallel - Add normally
How does current flow in an RC circuit (one that contains both resistors and capacitors)? - ANS-✔✔
Capacitor is charged first, then current hits the resistor.
What is the biological equivalent of a serial capacitor circuit? A parallel capacitor circuit? - ANS-✔✔
Serial - Myelinated Axon (goes through two layers)
Parallel - Unmyelinated Axon - Multiple openings to go through
Ion Channels
Why does capacitance increase when capacitors are present in a parallel circuit but decrease when
those circuit elements are in a serial circuit? - ANS-✔✔The length of the parallel circuit capacitors are
longer than those in a serial circuits, allowing them to store and separate more charge than those in a
serial circuit.
How does current flow in circuits that contains both resistors and capacitors in parallel? How does this
apply to neuronal membranes. - ANS-✔✔First, the current will flow through the capacitor and then hit
the resistor after. This applies to neuronal membranes because charged molecules accumulate at the
bilayer first, allowing the bilayer to accumulate charge. After, they pass through the ion channels (the
resistors). This is the same on the way out of the cell.
What are the functions of membranes. - ANS-✔✔1) They act as capacitors
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