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13 Nov 2019
(1 point) A 600-Ω resister and another resistor of variable resistance R are connected in parallel to create an equivalent resistance of Req = (1+1) dReq a) Find dR dReq dR b) Find Req if R = 500 Ω. Round your answer to at least 3 significant figures. eq c) How much should R change from 500 Ω if Req is to decrease by 3 Ω from the value found in (b)? Use linear approximation to estimate the result and round to at least 3 significant figures. Necessary change in R Ω (positive for increase, negative for decrease) d) Suppose that R 500 Ω with an uncertainty of 5%. Use linear approximation to find the percentage uncertainty in R, Round your answer in both parts to at least 3 significant figures Uncertainty in Req
(1 point) A 600-Ω resister and another resistor of variable resistance R are connected in parallel to create an equivalent resistance of Req = (1+1) dReq a) Find dR dReq dR b) Find Req if R = 500 Ω. Round your answer to at least 3 significant figures. eq c) How much should R change from 500 Ω if Req is to decrease by 3 Ω from the value found in (b)? Use linear approximation to estimate the result and round to at least 3 significant figures. Necessary change in R Ω (positive for increase, negative for decrease) d) Suppose that R 500 Ω with an uncertainty of 5%. Use linear approximation to find the percentage uncertainty in R, Round your answer in both parts to at least 3 significant figures Uncertainty in Req
Collen VonLv2
8 May 2019