# Active filter consisting of an op-amp, resistors R1 ,R2 ,R3 and two capacitors of value C each, has a transfer function T(s) = -s/ (R1 C)/s2 +2s/ (R3 C) + 1/ (RR3C2) When R=R1||R2, R1= 2KΩ, R2= 2/3KΩ, R3= 200KΩ and C= 0.1μF Gain AF of the filter will be

1.  80

2.  100

3.  200

4.  240.

4

100

Explanation :
No Explanation available for this question

# Active filter consisting of an op-amp, resistors R1 ,R2 ,R3 and two capacitors of value C each, has a transfer functionT(s) = -s/ (R1 C)/s2 +2s/ (R3 C) + 1/ (RR3C2) When R=R1||R2, R1= 2KΩ, R2= 2/3KΩ, R3= 200KΩ and C= 0.1μF Q of the filter will be

1.  10.18

2.  11.18

3.  111.8

4.  100.8

4

11.18

Explanation :
No Explanation available for this question

# Active filter consisting of an op-amp, resistors R1 ,R2 ,R3 and two capacitors of value C each, has a transfer function T(s) = -s/ (R1 C)/s2 +2s/ (R3 C) + 1/ (RR3C2) When R=R1||R2, R1= 2Kω, R2= 2/3Kω, R3= 200Kω and C= 0.1µFCenter frequency ω0 will be

4

Explanation :
No Explanation available for this question

# A pick-up signal N10 is power-amplified using a complementary symmetry push pull amplifier and fed to a 5-ohm loudspeaker as shown in the figure. Specifications of the power transistor are: IC/max=maximum collector current =2amps. IC/max=maximum power disipassion= 1watt What is the maximum power delivered to the loud speaker if maximum output voltage subject to OP-AMP voltage limitations is 15 volts

1.  0.1 watt

2.  10 watts

3.  11 watt

4.  None of these.

4

0.1 watt

Explanation :
No Explanation available for this question

# A pick-up signal N10 is power-amplified using a complementary symmetry push pull amplifier and fed to a 5-ohm loudspeaker as shown in the figure. Specifications of the power transistor are: IC/max=maximum collector current =2amps. IC/max=maximum power disipassion= 1watt. If transistors are mounted on a heat sink so that PC max changes to 3 watts, what will be the new value of the maximum power delivered

1.  0.1 watt

2.  0.13 watt

3.  1.13 watt

4.  11 watt.

4

0.13 watt

Explanation :
No Explanation available for this question

# The circuit shown in the figure below uses an ideal operational amplifier. Assume that the impedance at nodes A and B do not load the preceding bridge circuit. When Ra = Rb =Rd=100 ohms, output voltage V0 will be

1.  0

2.  10

3.  100

4.  120.

4

0

Explanation :
No Explanation available for this question

# The circuit shown in the figure below uses an ideal operational amplifier. Assume that the impedance at nodes A and B do not load the preceding bridge circuit. When Ra=Rb=Rc=100 ohms and Rd=120 ohms, output voltage V0 will be

1.  -0.345V

2.  -0.445V

3.  -0.545V

4.  -0.645V.

4

-0.545V

Explanation :
No Explanation available for this question

# A resistively loaded and resistively biased differential amplifier circuit is shown in the figure below neglect base current and assume matched transistors with VA = and β=100 Use VT = 26mV, VBE (on) = 0.7 V and VCE (sat) = 0.1V To meet the following specifications: Differential mode gain (double ended) = -500 Common-mode rejection ratio = 500 Differential mode input resistance = 2MΩ Values of RC and RE respectively are

1.  5×106 Ω, 3.5×106 Ω

2.  4×106 Ω, 2.5×106 Ω

3.  5×106 Ω, 2.5×106 Ω

4.  4×106 Ω, 3.5×106 Ω

4

5×106 Ω, 2.5×106 Ω

Explanation :
No Explanation available for this question

# Assume ideal OP-AMPS and the circuit shown in the figure below, simulates an inductor will be equal to

1.  sL

2.

3.

4.

4

sL

Explanation :
No Explanation available for this question

1.  CR2

2.  2CD2

3.

4.

4