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Write and explain Kirchhoff's second law (Loop rule). |
Answer» Solution : `rArr` for LOOP ahdcba, ` - 30 I_(1) + 45 - I_(3) - 40 I_(3) =0` `therefore -30 I_(1) - 41 I_(3) + 45 = 0 `... (1) For loop ahdefga, `- 30 I_(1) + 20 I_(2) + I_(2) - 80= 0 ` ` therefore - 30 I_(1) + 21 I_(2) - 80 = 0 `... (2) For closed loop abdefga, ` 40 I_(3) + I_(3) - 45 + 20 I_(2) + I_(2) - 80= 0` `therefore 41 I_(3) + 21 I_(2) - 125 = 0"" ` .... (3) |
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