ANALYSIS+DESIGN OF LINEAR CIRCUITS(LL)
8th Edition
ISBN: 9781119235385
Author: Thomas
Publisher: WILEY
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In the circuit below, the switch moves from position 1 to position 2 at t=0.
Select the closest waveform which represents the inductor current:
2
R
2R
V₁
t=0
0
t=0
(a)
(d)
t=0
(b)
(e)
0
0
t=0
(c)
t=0
요
(f)
Note: choices are listed randomly; may not alphabetically ordered.
(given during job interview question, with permission)
waveform c
waveform a
O waveform d
waveform e
waveform b
○ waveform f
t=0
R
Let R1-8 ohms, R₂-5 ohms, L₁-2 H, Vx=10 V, in the circuit shown, to calculate the inductor current at time
t= (0.6 sec) and at t= 2 sec, as follows:
i(0) =
1(00) -
Rth=
=
i(0.6 sec) =
i(2 sec)
=
R₁
(A)
(A)
(N)
Vx
1=0
The relative tolerance for this problem is 9 %.
(A)
(A)
R2
ell
4₁
The following circuit is at steady state for t<0. At t=0 sec, the switch opens. Let R₁=102, R₂-12 2, R3=6
2, R4-6, C=0.9 F and V₂-14 V, and find V(t) at t =2.206 sec, as follows:
V(0) =
(V)
V(∞0) =
RTh
=
V(2.206) =
(V)
(Ω)
(V)
{To avoid errors, and meet allowed tolerance, carry-out your intermediate numerical values as much as
possible than round only the entered values to 3 significant digits}
R₁
w
V (+
R₂
ww
+
C
EV(t)
R3
The relative tolerance for this problem is 10 %.
Question Help: Written Example
I
R4
www
2=0
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- PM Mon Apr 14 la800803.us.archive.org Chapter 5 Problems 199 5-8 5-9 carry generator of Fig. 5-5. Derive the two-level Boolean expression for the output carry Cs shown in the look-ahead How many unused input combinations are there in a BCD adder? 5-10 Design a combinational circuit that generated the 9's complement of a BCD digit. 5-11 Construct a 4-digit BCD adder-subtractor using four BCD adders, as shown in Fig. 5-6, and four 9's complement circuits from Problem 5-10. Use block diagrams for each compo- nent, showing only inputs and outputs. 5-12 It is necessary to design a decimal adder for two digits represented in the excess-3 code. Show that the correction after adding the two digits with a 4-bit binary adder is as fol- lows: (a) The output carry is equal to the carry from the binary adder. = (b) If the output carry 1, then add 0011. (c) If the output carry = 0, then add 1101. Construct the decimal adder with two 4-bit adders and an inverter. 5-13 Design a combinational circuit…arrow_forwardFor the circuit shown, assume the initial capacitor voltage is V(0-) = -8 V. Then at t=0, the switch closes. Find the time at which Vc(t)-8 V. Let R₁-12 S2, C1-8 F and V₂-16 V The voltage Vc(∞ )= Time-constant T= The time at which Vc(t)-8 V ist = (V) (sec) (sec) + R1 C₁ + Vct) The relative tolerance for this problem is 10 %.arrow_forward13. Find i(t) for t > 0 in the following circuitarrow_forward
- Calculate the Capacitor Voltage for t > 0 assuming the switch has been open for long time.arrow_forward14. Find i(t) for t > 0 in the following circuit Note: the current source is only ON for t > 0. So, it would be an open circuit for t < 0arrow_forward10. Find v(t) for t > 0 in the following circuit. Note: the current source is only ON for t > 0. So, it would be an open circuit for t < 0arrow_forward
- 3. Calculate the Capacitor Voltage for the t 0 for the following circuit. 302 292 12 V 4 V 3 F 2arrow_forward12. Find v(t) and i(t) for t > 0 in the following circuit • Note: the current source is only ON for t > 0. So, it would be an open circuit for t < 0 • Note: assume v(0) = 0V and i(0) = 0A.arrow_forward6. Determine the inductor current i(t) for the t 0 for the following circuit 1=0 6 A ww 40 20 ele 3 Harrow_forward
- 11. Find v(t) and i(t) for t > 0 in the following circuit. Note: the current source is only ON for t > 0. So, it would be an open circuit for t < 0arrow_forward8. Determine the inductor current i(t) for the t < 0 and t > 0 for the following circuitarrow_forward7. Determine the inductor current i(t) for the t < 0 and t > 0 for the following circuitarrow_forward
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