Basic Circuit Analysis (2nd Edition)
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around the 20-Q resistor, and it locations the two hundred V of the right-hand resource around the 25-R resistor. through Ohm's legislation, I , = a hundred 20 = five A and that i, = -200/25 = - eight A. The unfavorable signal happens within the I, formulation as a result of nonassociated references. zero zero - - - - - - - - - - sixteen A Fig. 3-16 \ \ 20 R II I: Fig. 3-17 25 R CHAP. 31 forty three sequence AND PARALLEL DC CIRCUITS From ok C L utilized on the most sensible center node, I, = I, + I , = five - eight = - three A. in fact the unfavourable register the reply signifies that three A.
resource to V,, whether it is referenced optimistic towards terminal N . Ans. 5.58 For the circuit proven in Fig. 5-42, use superposition to discover the contribution of every resource to the present in a brief circuit attached among terminals U and h. The short-circuit present reference is from terminal U to terminal h. Ans. 5.59 8.04 A from the generator, 5.57 A from the battery remodel the A proven in Fig. 5-56u to the Y in Fig. 5-56b for Ans. 5.63 13.6 A For the auto circuit of Prob. 5.60 use.
within the circuit proven in Fig. 5-58. Ans. 5.68 I, = 7.72A, I, = -0.36A, I, = -7.36A Use a A-to-Y transformation find the voltage V that explanations 2 A to movement down throughout the 3-R resistor within the circuit proven in Fig. 5-59. Ans. 17.8 V Fig. 5-58 Fig. 5-59 CHAP. fifty one 5.69 I n the lattice circuit proven in Fig. 5-57, what resistor substituted for the pinnacle 40-R resistor factors 0 present stream within the 50-R resistor? Am. 5.70 ninety R 14.8 R Use a A-Y transformation to discover 1 within the.
four V -3.10 V * Fig. 6-37 I33 134 6.42 think for the circuit of Fig. 6-37 that the op-amp saturation voltages are minimal optimistic price of V, that would produce saturation. Ans. 6.43 [CHAP. 6 OPERATIONAL-AMPLIFIER CIRCUITS V , = & 14 V. be sure the 18.1 V suppose for the op-amp within the circuit of Fig. 6-38 that the saturation voltages are V , = f 14 V and that R , = 12 kR. Calculate the diversity of values of R , that might bring about saturation of the op amp. Ans. R , 2 7 kR zero + d-.
Uncharged 0.1-CIF capacitor. locate the capacitor voltage and present at 0.1 s after the swap closes. The voltage formulation is L' = U ( = ) + [ u ( O + ) - ~ ( m ) ] e - ~ " . the following, x 106)(0.1x 10-6) = 0.2 S. SO, z1( x )= two hundred V, tl(O+) = zero V, and T = (2 o(t) = two hundred + [ O - 200]e-f/0.2= two hundred - 200e-5f V r>Os for Substitution of 0.1 to t offers ~(0.1): = 78.7 u(O.1) = two hundred - 2004-0 equally, i = i ( m )+ [i(O+) - i ( c ~ ) ] e - ~ in ' ~ which , and naturally T = 0.2 s. With those values.