For the following questions answer them individually
An amplifier with negative feedback has overall gain of 100. The percentage change in gain with feedback and without feedback is 3% and 18% respectively. What is the feedback factor?
Two voltmeters with ranges of 0 to 100 V has sensitivities as 10 kΩ/V and 20 kΩ/V. What is the maximum voltage that can be measured when these voltmeters are connected in series?
An ammeter with range 0 to 2 mA has internal resistance of 10 Ω. What is the value of shunt resistance in order to increase the range of ammeter to 100 A?
In a Dynamometer type wattmeter if current coil and voltage coil connections are interchanged then
In a linear system, an input of $$5 \sin \omega t$$ produces an output of $$10 \cos \omega t$$. The output corresponding to input $$10 \cos \omega t$$ will be equal to:
In an induction motor $$r'_2$$ is the rotor resistance. What is the resistance representing mechanical output in the equivalent circuit of an induction motor as referred to stator side?