Advertisements
Advertisements
प्रश्न
Obtain the equivalent capacitance of the network shown in the figure. For a 300 V supply, determine the charge on each capacitor.
Advertisements
उत्तर
 |
 |
 |
The equivalent capacitance = `200/3` pF
charge on C4 = `200/3 xx 10^-12 xx 300 = 2 xx 10^-8` C,
the potential difference across C4 = `(200 xx 10^-12 xx 300)/(3 xx 100 xx 10^-12)` = 200 V
potential difference across C1 = 300 - 200 = 100 V
charge on C1 = 100 × 10-12 × 100 = 1 × 10-8 C
potential difference across C2 and C3 series combination = 100 V
potential difference across C2 and C3 each = 50 V
charge on C2 and C3 each = 200 × 10-12 × 50 = 1 × 10-8 C
APPEARS IN
संबंधित प्रश्न
A thin metal plate P is inserted between the plates of a parallel-plate capacitor of capacitance C in such a way that its edges touch the two plates . The capacitance now becomes _________ .
Suppose, one wishes to construct a 1⋅0 farad capacitor using circular discs. If the separation between the discs be kept at 1⋅0 mm, what would be the radius of the discs?
Take `C_1 = 4.0 "uF" and C_2 = 6.0 "uF"` in figure . Calculate the equivalent capacitance of the combination between the points indicated.
An air-filled parallel-plate capacitor is to be constructed which can store 12 µC of charge when operated at 1200 V. What can be the minimum plate area of the capacitor? The dielectric strength of air is `3 xx 10^6 "Vm"^-1`
Three capacitors are connected in a triangle as shown in the figure. The equivalent capacitance between points A and C is ______.
Obtain the expression for capacitance for a parallel plate capacitor.
Obtain the expression for energy stored in the parallel plate capacitor.
Explain in detail the effect of a dielectric placed in a parallel plate capacitor.
Capacitors P and Q have identical cross-sectional areas A and separation d. The space between the capacitors is filled with a dielectric of dielectric constant Er as shown in the figure. Calculate the capacitance of capacitors P and Q.
A parallel plate capacitor (A) of capacitance C is charged by a battery to voltage V. The battery is disconnected and an uncharged capacitor (B) of capacitance 2C is connected across A. Find the ratio of final charges on A and B.
