7340885 - Current passing through R2 is = = = . I2 V12R2...

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We, have: For resistance, Rn and Rm in parallel, = + Req RnRmRn Rm For resistance, Rn and Rm in series, = + Req Rn Rm Now, above circuit can be reduced to an equivalent circuit with , VT Req : R1 and R2 are in parallel, = + = R12 R1R2R1 R2 5 Ω R4 and R5 are in series, = + = R45 R4 R5 40 Ω , R45 R3 and R6 are in parallel, = + + = Req1 R45R3R6R45 R3 R6 25 Ω R12 and Req1 are in series, = + = Req R12 Req1 30 Ω Hence, (a) = = = IT VTReq 12030 4 A (b) ---------------------------------------------------------------------------- (c) (d) Current passing through R12 is = IT 4 A (e) (f) Voltage across R12 is then = = V12 ITR12 20 V (g) (h)
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Unformatted text preview: Current passing through R2 is = = = . I2 V12R2 2030 0 67 A (i) -----------------------------------------------------------------------------(j) (k) Voltage across Req1 is = = Veq1 ITReq1 100 V (l) (m) Current passing through R6 is = = I6 Veq1R6 1 A (n) ------------------------------------------------------------------------------(o) (p) Current passing through R3 is = = . I3 Veq1R3 0 5 A Current through R4 and R5 is = - - . = . I45 4 1 0 5 2 5 A (q) Hence, (r) (s) Voltage across R4 is = = V4 I45R4 75 V (t) (u) (v) (w) (x) (y)...
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7340885 - Current passing through R2 is = = = . I2 V12R2...

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