मराठी

Find the Ratio of Energy Stored in the Two Configurations If They Are Both Connected to the Same Source.

Advertisements
Advertisements

प्रश्न

Find the ratio of energy stored in the two configurations if they are both connected to the same source.

Advertisements

उत्तर

 Energy for series combination

`E_s =1/2 C_(eq.s)V^2 = 1/2 xx 2xx 10^-6 xx V   ... (1)`

Energy for parallel combination

`E_p =1/2 C_(eq.p)V^2 =1/2 xx 18 xx 10^-6 xx V     ....(2)`

As both are connected to the same source

Hence, `E_s/E_p = (1/2 xx 2 xx 10^-6 xx V)/(1/2 xx 18 xx10^-6 xx V)  = 1/9`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2010-2011 (March) All India Set 3

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Find the charge on the capacitor as shown in the circuit.


A capacitor of capacitance 500 μF is connected to a battery through a 10 kΩ resistor. The charge stored in the capacitor in the first 5 s is larger than the charge stored in the next.

(a) 5 s

(b) 50 s

(c) 500 s

(d) 500 s


A capacitor C1 of capacitance 1 μF and a capacitor C2 of capacitance 2 μF are separately charged by a common battery for a long time. The two capacitors are then separately discharged through equal resistors. Both the discharge circuits are connected at t = 0.

(a) The current in each of the two discharging circuits is zero at t = 0.

(b) The currents in  the two discharging circuits at t = 0 are equal but not zero.

(c) The currents in the two discharging circuits at t = 0 are unequal.

(d) C1 loses 50% of its initial charge sooner than C2 loses 50% of its initial charge.


How many time constants will elapse before the charge on a capacitors falls to 0.1% of its maximum value in a discharging RC circuit?


Find the charge on each of the capacitors 0.20 ms after the switch S is closed in the figure.


Each capacitor in figure has a capacitance of 10 µF. The emf of the battery is 100 V. Find the energy stored in each of the four capacitors.


Obtain the expression for the energy stored in a capacitor connected across a dc battery.


If the p. d. across a capacitor is increased from 10 V to 30 V, then the energy stored with the capacitor ____________.


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 total electrostatic energy stored in A and B finally and that stored in A initially.


In a capacitor of capacitance 20 µF, the distance between the plates is 2 mm. If a dielectric slab of width 1 mm and dielectric constant 2 is inserted between the plates, what is the new capacitance?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×