(5%) Problem 4: In the circuit pictured, the resistors have values ofR1 180 2, 2

Question

(5%) Problem 4: In the circuit pictured, the resistors have values ofR1 180 2, 2, and R3 149 2, and the battery has an emf a 211 R2 99 25% Part (a) Write an expression for the current through the battery G A 25% Part (b) In amperes, how much current iban goes through the battery? batt 7 8 9 sino cos0 tan 0 5 6 cotan0 asin acos0 1 2 3 at an O acotan0 sinh0 cosh00 tanh0 cotanh0 Degrees O Radians I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. resistor 2. A 25% Part (d) In amperes, what is the current i2 through resistor R2? RII Otheexpertta.com Grade Summary Deductions 0% Potential 100% Submissions Attempts remaining: 5 (4% per attempt detailed view

Explanation / Answer

equivalent resistance = (R2+R3) II R1 = (99+149) II180 = 248 II 180 = 248x180/(248+180) = 104.30 ohms

so, current goes through through the battery = V/Req = 211/104.30 = 2.023 amps

the expression for current through resistor R2

= V/[R1/Req)(R2+R3)]

value = i2 = 211/[(180/104.30)(248)] = 0.492 AMPS

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