Download [Type text] Name: Date: Period:______ Wheatstone Bridge Activity

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript 
[Type text]
Name: _____________________________
Date: ____________________
Period:________
Wheatstone Bridge Activity Pre-Assessment Answer Key
While watching the Wheatstone bridge videos Part 1 & Part 2, please answer the following questions:
1. What are the components in the schematic diagram in the video?
(A power supply, 4 resistors, and an ammeter)
2. How many volts is each resistor dropping in the circuit shown in the video?
(5 volts)
3. If you connect a line from the left circuit to the right circuit in the Wheatstone bridge diagram in the
video, will current flow? Why or why not?
(No, the current will not flow. The current will not flow because the left circuit between the resistors
has 5 volts, and the right side of the circuit between the resistors also have 5 volts. There is no
potential difference between the left and right side of the circuit.)
4. What must you have in order for current to flow, according to the video?
(You must have a potential difference between the left and right side of the circuit. Voltage cannot be
zero.)
5. Please write the Wheatstone bridge equation?
(R1/R2=R3/R4)
6. Please determine the missing resistor value in order to balance the Wheatstone bridge?
A. R1= 20Ω
B. R2= 120Ω
C. R3= 7Ω
D. R4= _____
(R1/R2=R3/R4  R4=(R2*R3)/R1  R4=(120Ω*7Ω)/20Ω  R4=840Ω/20Ω  R4= 42Ω)
Related documents