19-5 Ca 38. (I) (a) Six 4.8-µF capacitors are connecte What is the equivalent capacitance? (b) What is their equiva- lent capacitance if connected in series? 49. 39. (1) A 3.00-µF and a 4.00-µF capacitor are connected in series, and this combination is connected in parallel with a 2.00-µF capacitor (see Fig. 19–63). What is the net capacitance? 50 40. (II) If 21.0 V is applied across the whole network of Fig. 19-63, calculate (a) the voltage across each capacitor and (b) the charge on each capacitor. C = 3.00 µF C2 = 4.00 µF %3D Н C3 = 2.00 µF %| wolt ler Indh FIGURE 19-63 Problems 39 and 40. 21.0 V- 41. (II) The capacitance of a portion of a circuit is to be reduced from 2900 pF to 1200 pF. What capacitance can be added to the circuit to produce this effect without removing existing circuit elements? Must any existing connections be broken to accomplish this? 42. (II) An electric circuit was accidentally constructed using a 7.0-µF capacitor instead of the required 16-µF value. Without removing the 7.0-uF capacitor, what can a techni- cian add to correct this circuit? 43. (II) Consider three capacitors, of capacitance 3200 pF, 5800 pF, and 0.0100 µF. What maximum and minimum capacitance can you form from these? How do you make the connection in each case?
19-5 Ca 38. (I) (a) Six 4.8-µF capacitors are connecte What is the equivalent capacitance? (b) What is their equiva- lent capacitance if connected in series? 49. 39. (1) A 3.00-µF and a 4.00-µF capacitor are connected in series, and this combination is connected in parallel with a 2.00-µF capacitor (see Fig. 19–63). What is the net capacitance? 50 40. (II) If 21.0 V is applied across the whole network of Fig. 19-63, calculate (a) the voltage across each capacitor and (b) the charge on each capacitor. C = 3.00 µF C2 = 4.00 µF %3D Н C3 = 2.00 µF %| wolt ler Indh FIGURE 19-63 Problems 39 and 40. 21.0 V- 41. (II) The capacitance of a portion of a circuit is to be reduced from 2900 pF to 1200 pF. What capacitance can be added to the circuit to produce this effect without removing existing circuit elements? Must any existing connections be broken to accomplish this? 42. (II) An electric circuit was accidentally constructed using a 7.0-µF capacitor instead of the required 16-µF value. Without removing the 7.0-uF capacitor, what can a techni- cian add to correct this circuit? 43. (II) Consider three capacitors, of capacitance 3200 pF, 5800 pF, and 0.0100 µF. What maximum and minimum capacitance can you form from these? How do you make the connection in each case?
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40. If 21.0 V is applied across the whole network of fig 19-63 calculate a) the voltage across each capacitor and b) the charge on each
Transcribed Image Text:19-5 Ca
38. (I) (a) Six 4.8-µF capacitors are connecte
What is the equivalent capacitance? (b) What is their equiva-
lent capacitance if connected in series?
49.
39. (1) A 3.00-µF and a 4.00-µF capacitor are connected in series,
and this combination is connected in parallel with a 2.00-µF
capacitor (see Fig. 19–63). What is the net capacitance?
50
40. (II) If 21.0 V is applied across
the whole network of Fig. 19-63,
calculate (a) the voltage across
each capacitor and (b) the charge
on each capacitor.
C =
3.00 µF
C2 =
4.00 µF
%3D
Н
C3 =
2.00 µF
%|
wolt ler
Indh
FIGURE 19-63
Problems 39 and 40.
21.0 V-
41. (II) The capacitance of a portion of a circuit is to be reduced
from 2900 pF to 1200 pF. What capacitance can be added to
the circuit to produce this effect without removing existing
circuit elements? Must any existing connections be broken
to accomplish this?
42. (II) An electric circuit was accidentally constructed using
a 7.0-µF capacitor instead of the required 16-µF value.
Without removing the 7.0-uF capacitor, what can a techni-
cian add to correct this circuit?
43. (II) Consider three capacitors, of capacitance 3200 pF,
5800 pF, and 0.0100 µF. What maximum and minimum
capacitance can you form from these? How do you make
the connection in each case?
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