A battery of silicon photocells mounted on a plane surface operates with an efficiency of 16.7%. It is installed at a location 45° north. The time is 10:00 on April 1, 2017. When the battery faces the sun directly, it delivers 870W to a resistive load. How much power does it deliver if the surface is set at an elevation of 25° and faces true east?

A battery of silicon photocells mounted on a plane surface operates with an efficiency of 16.7%. It is installed at a location 45° north. The time is 10:00 on April 1, 2017. When the battery faces the sun directly, it delivers 870W to a resistive load. How much power does it deliver if the surface is set at an elevation of 25° and faces true east?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 3RQ: A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted...

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

A battery of silicon photocells mounted on a plane surface operates with an efficiency of 16.7%.
It is installed at a location 45° north. The time is 10:00 on April 1, 2017.
When the battery faces the sun directly, it delivers 870W to a resistive load. How much power
does it deliver if the surface is set at an elevation of 25° and faces true east?
Ans.: 708W

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