A superheterodyne receiver is to tune the range 88.IMHZ to 107.1MH2. The RF circuit inductance is luH. Low side injection is used. a. Calculate the minimum capacitance of the variable capacitor in the RF circuit ANSWER: 2.208pF b. Calculate the RF circuit capacitance tuning ratio ANSWER: 1.4778 c. If the receiver has a single converter stage and IF of 800kHz, calculate the capacitance tuning ratio of the local oscillator ANSWER: 1.483pF

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Solar Cell

A solar cell, or photovoltaic cell, is a device that converts light into electricity directly through a photovoltaic effect, i.e., a physical and chemical event. It is a type of electromagnetic cell, defined as being used for its electrical properties, current, voltage, or resistance, which vary when exposed to light. Everyday cellular gadgets are usually the building blocks of photovoltaic modules, collectively known as solar panels. Single junction silicon solar cell can generate an open circuit of about 0.5 to 0.6 volts.