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Author Question: A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC) when illuminated ... (Read 91 times)

tiffannnnyyyyyy

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on: Jul 28, 2018
A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1 000 W/m2 sunlight. What is the efficiency of the solar cell?
 a. 16
  b. 7
  c. 23
  d. 4
  e. 32

Question 2

At a distance of 10 km from a radio transmitter, the amplitude of the E-field is 0.20 volts/meter. What is the total power emitted by the radio transmitter?
 a. 10 kW
  b. 67 kW
  c. 140 kW
  d. 245 kW
  e. 21 kW


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abro1885

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


tiffannnnyyyyyy

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Reply 2 on: Jul 28, 2018
Wow, this really help

isabelt_18

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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