Please show me how to get number 7 and 8 Answers are 7-D vev student Student Che

Question

Please show me how to get number 7 and 8 Answers are 7-D vev student Student Checklis O Copy of ROBERT BATI D ME120 D 7. The diagram on the right shows an arrange ment five 3 uf What is the equiv- A alent capacitance of this arrangement between points A and B? A. TAuf C. 15 D. 12 8. The dielectric in a parallel plate capacitor has a dielectric constant K, each plate has an area A, and the plates are separated by a distance d. If the dielectric can withstand a maximum electric field of E before dielectric breakdown, what is the maximum charge that can be stored on this capacitor? A. 2KeoAE C. eoAE larged with 5.0

Explanation / Answer

7)
calculating from the closed end

the last 3 capacitors are in series

1/Cx = (1/C1)+(1/C2)+(1/C3)

1/Cx = (1/3)+(1/3)+(1/3)

1/Cx = 3/3

Cx = 1 uF

this cx is in parallel with another 3uF

then Cy = Cx+ 3 uF = 1+3 = 4 uF

this Cy is in series with another 3 uF ,

so equivalent capacitanc is Ceq = (4*3)/(4+3) = 12/7 uF

So the correct choice is D) 12/7 uF

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