Home I Student: gonzale | Help Homework - Chapter 21 Begin Date: 12/27/2017 12:0

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Home I Student: gonzale | Help Homework - Chapter 21 Begin Date: 12/27/2017 12:00:00 AM--Due Date: 3/28/2018 11:59:00 PM End Date: 4/30/2018 12:00:00 AM (16%) Problem 2: You are given a 49.5 V battery and two resistors of resistances 25.5 ? and 97,5 ?. 25% Part (a) Find the current in A when these resistors are connected in series with the battery Deductions Potential cos0 tan() | ? | ( acoso atan) acotan sinh) coshO tan coan) 4 5 6 1 2 3 Submissions Attempts rem (1% per atter detailed view cotan( 0 Degrees Radians Hint I give up Hints: 1% deduction per hint Hints remaining 3 Feedback: 0 deduction per feedback resistor when connected in series with the rest of the circut. ?. ? 25% Part (c) Find the power dissipated in w by the 97.5 ? resistor when connected in series with the rest of the circuit. 25% Part (b) Find the power dissipated in w by the 25.5 dis 2596 Part (d) Find the current in A being drawn from the battery when the resistors are connected in parallel with the battery All content 2018 Expert TA, LIC

Explanation / Answer

a) R = R1 + R2 = 25.5 + 97.5 = 123 ohms

I = V / R = 49.5 / 123 = 0.402 A

b) P = I2 * R = 0.4022 * 25.5 = 4.12 W

c) P = I2 * R = 0.4022 * 97.5 = 15.75 W

d) Requ = [1/25.5 + 1/97.5]-1 = 20.21 ohms

I = V / R = 49.5 / 20.21 = 2.45 A

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