Please answer all questions Homework 4 Begin Date: 2/6/2017 12:00:00 AM Due Date

Question

Please answer all questions

Homework 4 Begin Date: 2/6/2017 12:00:00 AM Due Date: 2/20/2017 11:59:00 PM End Date: 2/20/2017 11:59:00 PM (8%) Problem 3: In the circuit pictured, the resistors have values of R 175 2, R2 2, and R 2, and the battery has an emf E 81 287 25% Part (a) Write an expression for the current through the battery A 25% Part (b) In amperes, how much current ibatt goes through the battery A 25% Part (c) Write an expression for the current through resistor 2 A 25% Part (d) In amperes, what is the current i2 through resistor R2? coso tano 7 8 9 Pro sin0 cotan asino acos0 4 5 6 atano acotan0 Sinho 1 2 3 cosh0 tanho cotanh0 o Degrees O Radians Submit Otheexpertta.com Grade Summary Deductions 0% 100% Potential Submissions Attempts remaining: 15 0% per attempt) detailed view

Explanation / Answer

part a:
current through the battery=current through R1 + current through R2 and R3

=(E/R1)+(E/(R2+R3))

part b:

using the values of different symbols,

current through battery=(287/175)+(287/(111+81))=3.1348 A

part c:

current through resistor R2

=current through resistor R2 and R3 (as they are in series, they will have same current through them)

=E/(R2+R3)

part d:

i2=287/(111+81)=1.4948 A

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