A solar cell generates a potential difference of 0.17 V when a 550 Q2 resistor is connected across it, and a potential difference of 0.24 V when a 970 resistor is substituted. What are the (a) internal resistance and (b) emf of the solar cell? (c) The area of the cell is 1.2 cm² and the rate per unit area at which it receives energy from light is 4.9 mW/cm². What is the efficiency of the cell for converting light energy to thermal energy in the 970 external resistor?

A solar cell generates a potential difference of 0.17 V when a 550 Q2 resistor is connected across it, and a potential difference of 0.24 V when a 970 resistor is substituted. What are the (a) internal resistance and (b) emf of the solar cell? (c) The area of the cell is 1.2 cm² and the rate per unit area at which it receives energy from light is 4.9 mW/cm². What is the efficiency of the cell for converting light energy to thermal energy in the 970 external resistor?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A solar cell generates a potential difference of 0.17 V
when a 550 resistor is connected across it, and a
potential difference of 0.24 V when a 970 resistor
is substituted. What are the (a) internal resistance
and (b) emf of the solar cell? (c) The area of the cell is
1.2 cm² and the rate per unit area at which it receives
energy from light is 4.9 mW/cm². What is the
efficiency of the cell for converting light energy to
thermal energy in the 970 2 external resistor?
(a) Number
(b) Number
(c) Number
i
Units
Units
Units
Ω
V
per

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