10. Your friend studying at GAIST (Goryo Advanced Institute of Science and Technology) had difficult time to calculate v

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10 Your Friend Studying At Gaist Goryo Advanced Institute Of Science And Technology Had Difficult Time To Calculate V 1 (68.54 KiB) Viewed 49 times

10. Your friend studying at GAIST (Goryo Advanced Institute of Science and Technology) had difficult time to calculate voltage VAB. Eventually, he asked for your help. [1] R1 R2 Vs A B R3 R4 ) a) Let's help your friend at GAIST and save his grade. Find formula of VaB in terms of R1, R2, R3, and R4 and Vs. b) You tried to verify the formula of VAB by experiment. So, you bought 1V battery (Vs), three precise 10k Ohm resistors (R1, R2, R3). And then, you ran out of mo Luckily, your friend had a resistor (R4) whose value is unknown. You decided to use it. From the experiment, you had VaB = -0.00249V. What is the resistance of R4? = Later, your TA told you that this is called, "Weatstone bridge," which is used to measure unknown resistance value by using voltage meter. Study by yourself: google weatstone bridge.