V BE Fig. 4a Vcc IcR Rc VCE 1 VCE Vcc VCE X 0 Y Fig.4b Q V BE Z UBE

If a non-inverting amplifier has Ri of 1000 ohms and an Rf of 2.5 kilohms, what is the Ri voltage when 1.52 mV is applied to the correct input? (A) 0.56 mv B) 1.52 mV 1.42 mV OV For the ideal op-amp shown, what should be the value of resistor Ri (in kilo Ohms) to obtain a gain of 44? No need for a solution. Just write your numeric answer (without the unit) in the space provided. Round off your answer to 2 decimal places. Vi + 1.2k0 Vo 3.6k0 M 10 ΚΩ For the op-amp circuit below, what is the value of vo (in millivolts) if v₁₁ = 10.1 mV and V₁2= 29 mV? No need for a solution. Just write your numeric answer (without the unit) in the space provided. Round off your answer to 2 decimal places. 15k0 Vil 3.ΟΚΩ Vo ww 3.ΟΚΩ Vi2

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A complementary pair class B push-pull amplifier has a supply voltage of 45 V and the transistors are biased so that they are sinusoidally driven to provide a current which is 80% of the maximum value. Calculate: (1) The output power supplied to a speaker having a resistance of 15 2 (ii) The collector efficiency (iii) The power rating of the transistors.