A solar cell generates a potential difference of 0.17 V when a 520 0 resistor is connected across it, and a potential difference of 0.25V when a 940 resistor is substituted. What are the (a) internal resistance and (b) emf of the solar cell? (c) The area of the cell is 2.5cm? and the rate per unit area at which it receives energy from light is 5.1 mW/cm². What is the efficiency of the cell for convertinglight energy to thermal energy in the 940 Q external resistor?(a) NumberiUnits(b) NumberiUnits(c) NumberUnits>>

Given:R1=520Ω∆V1=0.17 VR2=940Ω∆V1=0.25 VA=2.5 cm2=2.5×10-4 m2I=5.1 mW/cm2=5.1×10-310-4=51 W/m2 Let…

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