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`
APPEARS IN
संबंधित प्रश्न
A 12 pF capacitor is connected to a 50 V battery. How much electrostatic energy is stored in the capacitor?
A 600 pF capacitor is charged by a 200 V supply. It is then disconnected from the supply and is connected to another uncharged 600 pF capacitor. How much electrostatic energy is lost in the process?
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 capacitance C, a resistance R and an emf ε are connected in series at t = 0. What is the maximum value of (a) the potential difference across the resistor (b) the current in the circuit (c) the potential difference across the capacitor (d) the energy stored in the capacitor (e) the power delivered by the battery and (f) the power converted into heat?
How many time constants will elapse before the energy stored in the capacitor reaches half of its equilibrium value in a charging RC circuit?
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.
A capacitor with stored energy 4⋅0 J is connected with an identical capacitor with no electric field in between. Find the total energy stored in the two capacitors.
A capacitor is charged by a battery and energy stored is 'U'. Now the battery is removed and the distance between plates is increased to four times. The energy stored becomes ______.
Do free electrons travel to region of higher potential or lower potential?
Derive an expression for energy stored in a capacitor.
