Most of us have experienced an electric shock. The shock is the result of current passing through the body. A person can be modeled as a red resistor whose value ranges between 40 and 100 ohms, this depends on the amount of fat and muscle mass of each person. The maximum current that a person can withstand in direct current is 300mA for a certain amount of time before dying from internal damage. One of his classmates suggested that it might be fun to make a tapping machine, so he designed the circuit shown in the figure. For safety, the circuit must not deliver its maximum power or exceed the safe current for a person. Is the circuit safe for a person whose resistance is 50 ohms? If it is not safe, what do you suggest to avoid having a catastrophic accident?

Q: 3.a. Derive the overall gain of a non-inverting Amplifier.

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A:

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A:

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Q: 22. Find the output voltage Vo(t) in the circuit shown below. 3A 5Ω t=0 10 Ω 1Η ell 10 mF + Vo

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.