Question

Lab #8 - Combinations of Resistors and Ohm's Law PHY 101 Introduction to Physics Glendale Community College 6. Base your answer to this question on your observations from step 13 of procedure 3. The house has solar panels on the east side of its roof (sun rises on the eastern horizon) and the roof is at an angle of 30 degrees above the horizontal (see picture). a) Where will the sun be when the panels produce the greatest voltage? Show the sun's position by drawing the sun (a circle) on the picture and a straight line from the sun to the solar panels. b) Calculate and indicate the angle between the reference line (see pic) and the line from the sun to the solar panels. c) What will happen to the panel power output as the sun starts to set toward the west? reference line Solar panels 30° 30° West East

Answer 1

voltage will be maximum when sun rays are perpendicular to solar panel.

b. so the angle is 60 degress because 90-30= 60

perpendicular sun rays 60° Solar panel 30 E w 130

c.as the sun starts to set towards west, sun rays will fall slanting on the panel, and hence very little power will be produced .

power is directly proportional to the intensity of sun rays.