Question

Constants & Formula Sheet Charge of an Electron 1.6 x 101c Coulomb's Constant&V(48.9910 N-m'/c Permittivity of free spacce for electricity-e,-8 85-10· /(N-m) Permittivity of free space for magnetism A.-4x × 10" T . m/A & Charge of a Proton 1.6x 10c V = IR Ar -는슷 τ= NIA B sin φ 2 R -2NLC 5) For the circuit shown in the figure below, Use Kirchhoffs Rules to write the expression for: a) Junction rule at a 。20 pts) b) Loop rule for the left & right loops c) magnitude of the currents 1,山and I? 6 V 4 0

Answer 1

a) Junction rule at 'a' is
I₃ = I₂ +I₁ .......1
b) Loop rule for left loop, along clockwise direction
3 - 2 I₁ + 6 - 4 I₃ = 0   .....2
Loop rule for right loop, along clockwise direction
-6 - 8 I₂ - 9 + 4 I₃ = 0 ..........3

c) Solving equations 1 , 2 and 3, we get
I₁ = 0.86 A
I₂ = 0.96 A
I₃ = 1.82 A