Name: PREVIEW WORKSHEET FOR EXPERIMENT F. *ELECTRIC FIELD, ELECTRIC POTENTIAL: R

Question

Name: PREVIEW WORKSHEET FOR EXPERIMENT F. *ELECTRIC FIELD, ELECTRIC POTENTIAL: RC CIRCUIT" I. For each ofthe capacitor circuits shown below determine the equivalent capacitance between A and B 3 HF 12 ALF 4 HF 2HF 2. Capacitance from dimensions and dielectric constant: Given a parallelplate capacitor having rectangular (4 cm by 8 cm) plates, separated by 0.4 mm. Determine the capacitances for these two cases: (a) space between plates is empty. C". (b) Space between plates is glass with a relative dielectric constant of6.5. C-

Explanation / Answer

here,

1)

a)

3 uF , 7 uF and 4 uF are in parallel, their equivalent capacitance , C = 3 + 4 + 7 uF

C = 14 uF

b)

6 uF and 3 uF are in series , their equivalent capacitance , C = 6 * 3 /( 6 + 3)

C = 2 uF

c)

6 uF ,12 uF and 4 uF are in series , their equivalent capacitance be C

1/C = 1/12 + 1/6 + 1/4

C = 6 * 3 /( 6 + 3)

C = 2.18 uF

d)

4 uF and 2 uF are in parallel , their equivalent capacitance, C1 = 4 + 2 = 6 uF

C1 , 3 uF and 3 uF are in series , let the equivalent capacitance be C

1/C = 1/C1 + 1/3 + 1/3

1/C = 1/6 + 1/3 + 1/3

C = 1.2 uF

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