e42 e05 e002 1e3 Given 30I 5l 5 solve for l Given 1

e^+4.2 = _________ e^+0.5 = _________ e^-0.02 =_________ 1/e^-3 = ________ Given 30I = 5l + 5, solve for l. Given 1/R^T = 1/R^1 + 1/4R^1, solve for Rtau in terms of R1.

Solution

e^4.2 = 66.686

e^0.5 = 1.649

e^-0.02 = 0.980

1/e^-3 = 20.086

30I = 5I + 5

25I = 5

I = 5/25

I = 1/5 ---> answer for I

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1/Rt = 1/R1 + 1/4R1

1/Rt = 4/4R1 + 1/4R1

1/Rt = 5/4R1

Crossmultiplying :

5Rt = 4R1

Rt = 4R1/5 ---> answer