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pracexam2

# pracexam2 - EE-202 Exam II Practice Probs MULTIPLE CHOICE 1...

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EE-202 Exam II Practice Probs MULTIPLE CHOICE. 1. The frequency domain equivalent of an initialized inductor L is: (7) Something else 2. The step response of a particular circuit with no initial conditions is v out ( t ) = 1 ! e ! t ( ) u ( t ) . The impulse response is: (1) ! ( t ) (2) u(t) (3) ! ( t ) + e " t u ( t ) (4) e ! t u ( t ) (5) 1 ! e ! t ( ) " ( t ) (6) 1 + e ! t ( ) u ( t ) (7) Something else

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EE-202, Ex 2, page 2 3. In the circuit below with v C (0 ! ) = 5 volt , V C ( s ) at s = 2 is: (1) 4.0 (2) 3.6 (3) 3.2 (4) 2.8 (5) 2.4 (6) 2.0 (7) Something else 4. The transfer function of the circuit below is 1 ) ( + = Bs A s H where ( A , B ) is: (Hint: write a node equation at v(t).) (1) (-1, 3) (2) (1, 3) (3) (-1, 2) (4) (1, 2) (5) (-1, 1) (6) (1, 1) (7) Something else 5. In the circuit below with 0 ) 0 ( 1 = ! c v volt and 1 ) 0 ( 2 = ! c v volt , the switch is turned to A-C for 1 0 < ! t and 2 ! t and turned to B-C for 2 1 < ! t . Then, ) ( t v o at t = 2.5 is: (1) 1 (2) 2 (3) –1 (4) –2 (5) 3 (6) –3 (7) Something else
EE-202, Ex 2, page 3 6. Let v(t) be the output and v i (t) the input. In order for the circuit below to be stable in the sense of BIBO, the range of m most be: (1) m ! 1 (2) 1 > m (3) m ! 0 (4) 0 > m (5) 1 ! " m (6) m > -1 (7) Something else 7. The transfer function of a system is given as ) 1 ( 1 ) ( s s s H + = . When ) ( ) 45 cos( 2 2 ) ( t u t t v i ! + = is applied as the input, the output becomes ) ( ) cos( ) ( t u t A t v o ! + = where ) , ( ! A is: (1) ) 135 , 4 ( ! ! (2) ) 90 , 4 ( ! ! (3) ) 45 , 4 ( ! ! (4) ) 45 , 2 ( ! ! (5) ) 90 , 2 ( ! ! (6) ) 135 , 2 ( ! ! (7) Something else 8. The impulse response of a system is given as u ( t -1). When ) ( ) ( t u e t v t i ! = is applied to this system as the input, the output ) ( t v o is: (1) ) 1 ( ) 1 ( ! ! ! t u e t (2) ) 1 ( ! ! t u e t (3) ) ( ) 1 ( t u e t u t ! + ! (4) ) 1 ( ) 1 ( ) 1 ( ! ! ! ! t u e t (5) ) 1 ( ) ( ) 1 ( ! ! ! ! t u e t u t (6) ) 1 ( ) 1 ( ! ! ! t u e t (7) Something else

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EE-202, Ex 2, page 4 9. The following is the magnitude frequency response of a transfer function H(s). The best pole-zero plot leading to this magnitude response is: (5) Something else