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please help with parts A&B.
Safari File Edit View History Bookmarks Window Help session masteringphysics.com PHYS 112 General Physics Sp 16 Chapter 2 art 1 Homework Problem 21.27 What is the capacitance Problem 21.27 Express your answer using two significant figures Two 3.0 cm x 3.0 cm square aluminum electrodes, spaced 0.70 mm apart are connected to a 300 V battery. Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Part B What is the charge on the positive el Express your answer using two significant figures pF H) 86% Tue Jan 19 12:35 PM a E Help Close RedBull Resources previous l 9 of 13 l next EPI 480 all 15 syllabu Josh/Trial DOCX ealth 400 Fir JournalExplanation / Answer
The formula for capacitance,
C is C= eA/d
e = 8.85 x 10^-12 F/m
A = area = 0.03 x 0.03 sq.metres
d = spacing = 0.0007m
1.137*10^-11 farads (F). ans
positive electrode
Q=CV
= 1.137*10^-11*300
= 3.41*10^9 coulombs (C).
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