17_Chapter 16 HomeworkCH16 Electrical Energy and Capacitance

17_Chapter 16 HomeworkCH16 Electrical Energy and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Electrical Energy and Capacitance 51 (b) From Figure 3: ( ) ( )( ) = 2.00 F 12.0 V 24.0 C ac ac ac QC V µ ∆= = = 24.0 C ab bc ac QQ Q From Figure 2: = = 3.00 F Thus, the charge on the capacitor is 3 =24 .0 C Q Continuing to use Figure 2, () 24.0 C =4 . 6.00 F ab ab ab Q V C 0 0 V ∆== and 3 24.0 C =8 . 0 0 V 3.00 F bc bc bc Q VV C = = ()() From Figure 1, 42 .00 V ab VVV ()( ) ( ) and 44 = QC 4 4.00 F 4.00 V 16.0 C V = ( ) 22 = 2 V 8.00 C = 16.32 (1) 12 1 9.00 pF 9.00 pF parallel CC C C =+= ⇒ = 2 C 11 1 2.00 pF series series C C C C =+ ⇒ = = + Thus, using equation (1), ( ) 9.00 pF 9.00 pF series C = −+ ( = which reduces to
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 10/20/2011.

Ask a homework question - tutors are online