Title 3. P2C3.-Current-Electricity-2024_With Solve_Ridoy 19.04.25.pdf ✅

4  HSC Physics 2nd Paper Chapter-3 2bs eZ©bx‡Z GKK mg‡q AcPqK...Z kw3, H2  I 2 2    R +  r 3  0.09982     30 +  0.2 3  0.2994 J  H1 > H2 myZivs, 1bs eZ©bx‡Z GKK mg‡q AwaK kw3 AcPq n‡e| (Ans.) 6| 20 30 40 10 B D G A C E = 24 V + – (K) 12 I I [w`. †ev. 24] (K) Zwor cÖvej ̈ Kx? (L) RjcÖcv‡Zi wKQz Dci n‡Z cvwb co‡j cvwbi ZvcgvÎv e„w× cvq †Kb? (M) Pvwe (k) †Lvjv Ae ̄ vq ADC c‡_ cÖev‡ni gvb wbY©q Ki| mgvavb: 10  VAC  E  24 V D B 20  A C I I 30  40   – E  24 V  IADC  VAC RADC  24 30 + 40  24 70  0.343 A (Ans.) (N) Pvwe eÜ Ki‡j M ̈vjfv‡bvwgUvi Gi ga ̈ w`‡q MwZkxj cÖevn g~j cÖev‡ni GK Z...Zxqvsk n‡e wK bvÑ MvwYwZKfv‡e hvPvB Ki| mgvavb: A C I I  – E  24 V 30  G 40  10  20  I1 I2 I1  IG I2 – IG B D G F IG 12  ABDA jy‡c, 10I2  12IG – 30I1  0  – 30I1  10I2  12IG  0 .... (i) BCDB jy‡c, 20(I2 – IG) – 40 (I1  IG) – 12IG  0  – 40I1  20I2 – 72IG  0 .... (ii) ADCFGA jy‡c, – 24  30I1  40 (I1  IG)  0  70I1  40IG  24 .... (iii) (i), (ii) I (iii) n‡Z cvB, I1  0.3064 A I2  0.8426 A IG  0.0638 A eZ©bxi g~j cÖevn, I  I1  I2  0.3064  0.8426  1.149 A  IG I  0.0638 1.149  0.06  1 3 myZivs Pvwe eÜ Ki‡j M ̈vjfv‡bvwgUv‡ii cÖevn g~j cÖev‡ni GK-Z...Zxqvsk n‡e bv| (Ans.) 7| B‡jKwUawmwU j ̈e‡iUwi‡Z GKwU wgUvi wea‡Ri GKwU duv‡K 2 Ges Aci duv‡K 3 †iva mshy3 Av‡Q| wkÿv_©xiv wb ̄ú›` we›`y wVK gvSLv‡b †c‡Z Pv‡”Q| [h. †ev. 24] (K) K...ò e ̄‧i wewKiY Kv‡K e‡j? (L) Wv‡qv‡W Zwor GKw`‡K cÖevwnZ nq †Kb? e ̈vL ̈v Ki| (M) wb ̄ú›` we›`y †Kv_vq cvIqv hv‡e? wbY©q Ki| mgvavb: awi, 2  †iva †_‡K l cm `~‡i wb ̄ú›` we›`y cvIqv hv‡e|  P Q  l 100 – l  2 3  l 100 – l  200 – 2l  3l  5l  200  l  40 cm (Ans.) (N) DÏxcK Abyhvqx wkÿv_©x‡`i D‡Ïk ̈ mdj Kivi Rb ̈ Kx c`‡ÿc †bIqv †h‡Z cv‡i? MvwYwZK we‡kølYc~e©K DËi `vI| mgvavb: wb ̄ú›` we›`y wVK gvSLv‡b †c‡Z n‡j, l  50 cm n‡e|  P Q  50 100 – 50  P  Q A_©vr wgUvi wea‡Ri Dfq cÖv‡šÍ mggv‡bi †iva mshy3 _vK‡Z n‡e| 2  gv‡bi †iv‡ai mv‡_ 1  gv‡bi †iva †kÖwY mgev‡q hy3 Ki‡j Dfq cÖv‡šÍ †iv‡ai gvb mgvb n‡e| Avevi, awi 3  †iv‡ai mv‡_ X  gv‡bi †iva mgvšÍiv‡j hy3 Ki‡j Dfq cÖv‡šÍ †iv‡ai gvb mgvb n‡e|  1 2  1 3  1 X  1 X  1 2 – 1 3  X  6  myZivs, 2  †iv‡ai mv‡_ 1  †iva †kÖwY‡Z hy3 Ki‡j A_ev 3  †iv‡ai mv‡_ 6  †iva mgvšÍiv‡j hy3 Ki‡j wkÿv_©x‡`i D‡Ïk ̈ mdj n‡e| (Ans.)