Principles of Physics 11th ISV Edition Β· Circuits Β· Problem 28
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Walker, Halliday & Resnick β Circuits: Problem 28
28 A solar cell generates a potential difference of 0.10 V when a 500 \(\Omega\) resistor is connected across it, and a potential difference of 0.15 V when a 1200 \(\Omega\) resistor is substituted. What are the (a) internal resistance and (b) emf of the solar cell? (c) The area of the cell is 5.0 cm\(^2\), and the rate per unit area at which it receives energy from light is 2.0 mW/cm\(^2\). What is the efficiency of the cell for converting light energy to thermal energy in the 1200 \(\Omega\) external resistor?
π Solution Approach
Given: 28 A, 0.10 V, 0.15 V, 5.0 cm, 2.0 mW
Find: (a) internal resistance and; (b) emf of the solar cell?; (c) The area of the cell is 5
This problem covers key concepts in Circuits from Principles of Physics 11th ISV Edition by Walker, Halliday & Resnick. The step-by-step solution involves applying fundamental principles and systematic analysis to arrive at the correct answer. Full solution available with a Solution Pass.
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Principles of Physics Β· 11th ISV Edition
Author: Walker, Halliday & Resnick
Publisher: Wiley
Chapter: Circuits