Find the equivalent capacitance of the network shown in the figure, when each capacitor is of $1\mu\text{F}$. When the ends X and Y are connected to a 6 V battery, find out (i) The charge and (ii) The energy stored in the network.
CBSE OUTSIDE DELHI - SET 1 PATNA 2015
Download our app for free and get started
The equivalent setup is:
Here $?_A = ?_B$(A & B are at the same potential) so the bridge capacitor can be removed.
- $\text{Q} = \text{CV} = 6 \mu\text{c}.$
- $\text{U} = \frac{1}{2}\text{qV} = 18 \mu\text{J}.$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1A resistance R and a capacitor C are connected in series to a source $\text{V}=\text{V}_0\sin\omega\text{t}.$View Solution
Find:- The peak value of the voltage across the (i) resistance and (ii) capacitor.
- The phase difference between the applied voltage and current. Which of them is ahead?
- 2View SolutionState the underlying principle of a potentiometer. Write two factors by which current sensitivity of a potentiometer can be increased. Why is a potentiometer preferred over a voltmeter for measuring the emf of a cell?
- 3Use Bohr's postulates hydrogen atom to deduce the expression for the kinetic energy (K.E.) of the electron revolving in the $\mathrm{n}^{\text {th }}$ orbit and show that, K.E. $\frac{\mathrm{e}^2}{8 \pi \varepsilon_0 e_n}$, where $r_n$ is the radius of the $n^{\text {th }}$ orbit. How is the orbit. How is the potential energy in the orbit related to the orbital radius orbit related to the orbital radius $r_n$ ?View Solution
- 4View Solution
- When an AC source is connected to an ideal capacitor, show that the average power supplied by the source over a complete cycle is zero.
- A bulb is connected in series with a variable capacitor and an A.C. source as shown. What happens to the brightness of the bulb when the key is the capacitor is gradually reduced?
- 5View SolutionExplain why the reactance offered by an inductor increases with increasing frequency of an alternating voltage.
- 6A voltage $V = V_o$ sin $\omega\text{t}$ is applied to a series LCR circuit. Derive the expression for the average power dissipated over a cycle. Under what condition is (i) no power dissipated even though the current flows through the circuit, (ii) maximum power dissipated in the circuit?View Solution
- 7View Solution
- Derive Snell's law on the basis of Huygen's wave theory when light is travelling from a denser to a rarer medium.
- Draw the sketches to differentiate between plane wavefront and spherical wavefront.
- 8View SolutionDraw a circuit diagram of a C.E. transistor amplifier. Briefly, explain its working and write the expression for (i) current gain, (ii) voltage gain of the amplifier.
- 9View Solution
- Describe briefly three experimentally observed features in the phenomenon of photoelectric effect.
- Discuss briefly how wave theory of light cannot explain these features.
- 10View SolutionHow are electromagnetic waves produced? What is the source of energy of these waves? Draw a schematic sketch of the electromagnetic waves propagating along the + x-axis. Indicate the directions of the electric and magnetic fields. Write the relation between the velocity of propagation and the magnitudes of electric and magnetic fields.