E +|1|+ 2. Calculate the power used by each resistor in the circuit, assume the battery voltage is 12 V, and each resistor 100 2. Note: the power is not the same for all resistors! (answers: Req = 150 Ohms, P = 0.64 W for resistor near the battery and P = 0.16 W each for the two in parallel). Be prepared to do the same kind of calculation even if the resistors were not equal. R R R

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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.