Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Resisitance In Electrical Systems
Test Description: Principles of Technology I Unit 4: Resistance Subunit 3: Electrical Systems
Instructions: Answer all questions to get your test result.
1) Electrical resistance is a volt...
A
divided by time.
B
multiplied by an amp.
C
divided by an amp.
D
multiplied by time.
2) The electrical resistance of a wire is determined by the
A
type, size, and length of the wire.
B
color of the wire.
C
melting point of the wire.
D
malleability of the wire.
3) What does turning the knob on a dimmer switch do?
A
It causes the wire to coil or uncoil which slows the flow of electrons.
B
It changes the amount of voltage going to the bulb which changes the brightness.
C
It pinches the wire to prevent the flow of electrons.
D
It changes the amount of current going to the bulb which changes the brightness.
4) Materials that have a high electrical resistance are called
A
conductors.
B
semi-conductors.
C
resistors.
D
ohms.
5) Electrical resistance is measured in ohms. What is the correct symbol for ohms?
A
ПЂ
B
ПЃ
C
П‰
D
О©
6) In what direction to electrons flow in a circuit?
A
in any direction
B
from positive electrode to the negative electrode.
C
back and forth
D
from negative electrode to the positive electrode.
7) The equations resistance equals voltage divided by current is known as ____ Law.
A
Coulomb's
B
Einstein's
C
Newton's
D
Ohm's
8) Resistivity of a wire
A
is the capacity of a wire to resist an electric current.
B
is the same for any type of wire.
C
is determined by the temperature of the wire.
D
is the capacity of a wire to transmit an electric current.
9) The unit to measure the resistivity of a wire is
A
ОјО©
B
О©.cm
C
О©/cm
D
ПЃ
10) In a series circuit, the total resistance equals the
A
product of all the resistors.
B
sum of all the resistors.
C
1/2 the sum of each resistor.
D
the product of the resistors divided by the sum of the resistors
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?