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152-EC4 Intro rev 3

# 152-EC4 Intro rev 3 - Quiz on EC3 Quiz on EC3 Turn on your...

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Quiz on EC3 Turn on your clickers to connect to this session You may reference your lab report/lab manual/notes when answering these questions You will have 30 seconds for each question No talking, no writing. Either will be seen as cheating, and you will receive a 0 for this quiz. You will only have 2 tries to answer each question

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EC4 Wheatstone Bridge In this lab you will accomplish the following tasks: 1. Become familiar with the use of the Wheatstone bridge 2. Use the DC Wheatstone bridge to measure a i t resistance 3. Use the AC Wheatstone bridge to measure a resistance (page 1)
R 3 G I R X A B D The arrangement of four resistors shown in the figure is known as the “Wheatstone bridge” R 1 R 2 C We monitor the current I through branch DC of the bridge using the galvanometer G. ( A very sensitive ammeter is known as a “galvanometer” ) E sensitive ammeter is known as a galvanometer ) By varying R 1 , R 2 , and R 3 we can make the potential at point C be equal to

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