Question

please solve a and b

2.39 Evaluate Reg for each of the circuits shown in Fig. 2.103. 6 ΚΩ ΑΛΛΑ 2 ΚΩ 4 ΚΩ ΚΩ ΛΑ 12 ΚΩ - Μν O 2 ΚΩΣ <ΙΚΩ 12 ΚΩ ΜΑ

Answer 1

Zk2 111 potential on the wire at any point remams same so potential at ază (potential) or we can assume pornt a is equal to a to Tom { Aker ] $213km => MW } kr &am CA ) / Here 2kh and 1kn are qn parallel ( so we can Replace at Rab= 2111 = 2 Furter solving the circuit 213k2 and 2k2 are in senses so +2 = 813 km Am Racor Reg. = (813) x 1 . 8 kr Calways remember if two resistance on parallel then RalIR2 = RARE 1 means parallel Rate

moka a air I 12 k . & This symbol • 1242 means parallel Rega RallRo Ro Rb 7 RatRb ~Here - Vb we can oruit so - potenhal at b and b' are same assume it same point im 12K2 & Rbc and Rue = 12 kn are in parallel GK2 12M2 å ukr Tomme $12k2 12 km 1112 len a 12X12 12 x 12 bkn { 6R2 {4len = 12121/12 12 6khofoleh = 1212 3417 32 {4100 1262 & R Raba Req» 12/21/24 162 Reg 12x4 Reg. 48116=362 EGILTU