Question

RS w RE R3 VI WW R7 For the circuit in the figure above, Vi=12 V.R, -50. Ry -100, R, -8 0, R=20 R$ - 3. R-70 and Ry -90. What are the currents through and potentials across each of the resistors?

Answer 1

current Hence, through R is I = 1.1133 amp So, potential across R. ES VR = I, XR,= (1.1133x5) v - 5.5665 V v so voltage So So, current through Re is also 1-1133 amp. across Reis Ve= I x Re = 1.1133x5-778 49 = 6.43 v voltage across Rb and Rd also 6.43 v. current through Bb is I go 6.43 = 0·574 amp Current through Rais So voltage across R₂ is R₂ = = 1 x R₂ = 0.5748102 = 5.748 Voltage and is (we - 5.74) Ve Rb 11-2 0.574 amp across Ru R5 0-69 v So, current through Ry 0.69 2 amp = 0.345 amp amp = 0.23 amp. and I 0.69 I R5 Ve IRS Similarly current through Rz is 6.43 11.9375 amp Rd = 0.5386 amp - Rz is FR₂* Rz So, voltage across Jan 0.538648 4.3088 v R6 across and Ry 'is (de-VR3 and voltage = (6.43-403088) ~ 2.12 12 V 2.1212 R6 is 1) IR 2:1212 7 20303 amp R6 So current through current through Ry i 2-12 12 Ry = 0.2356 amy TRI 2.1212 9 and

and ru Therefore, corrent through the resistances is = 1.1133 amp, FR, = 0.574 amp, 0.345 amp, IRE = 0.23 amp, 0.2356 amp. IR = 0.5386 amp 103 amp SR6 = 0.303 and IRY and potentials acposs the resistances is = 403088 V 5.5665 v 5.74 V = JRI طول = 2-1212V, 0.69 v sas 0-69v VR1 2.12 12 V