Mixed Worksheet for Chapter 2 - Electrostatic Potential and Capacitance
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Sample questions
A particle of mass m and charge q starts from rest and moves in an electric field \(\vec{E}=E_0\hat{i}\). After travelling a distance x in the field along x-axis, the kinetic energy of the particle will be:
Capacitors are manufactured with certain standard capacitances and working voltages. However, these standard values may not be the ones that are actually needed in a particular application. Two or more capacitors can be grouped in series or in parallel to achieve desired capacitance and voltage. When connected in series, the total capacitance decreases while the voltage rating increases, whereas in parallel connections, the total capacitance increases and maintains the same voltage rating. A capacitor stores energy in the electric field between its plates and stored energy is proportional to the square of the voltage and capacitance U = \(\frac{1}{2}\) C\(V^{2}\), where symbols have their usual meanings.
Two capacitors, one of 3 μF and the other of 6 μF, are connected in series in the circuit as shown in the figure, for a long time.
(i) The total capacitance of the circuit is :
(A) 6 μF
(B) 3 μF
(C) 9 μF
(D) 2 μF
(ii) The current in the 10 Ω resistor is :
(A) 0·3 A
(B) 0·6 A
(C) 0·2 A
(D) 0
(iii) The potential difference between point A and B is :
(A) 2 V
(B) 0·3 V
(C) 0·2 V
(D) 3 V
(iv) (a) The value of charge on the plates of the 6 μF capacitor is :
(A) 6 μC
(B) 4 μC
(C) 12 μC
(D) 8 μC
OR
(b) The wire between two capacitors is cut at point P. The current in the circuit will :
(A) increase
(B) decrease
(C) remain the same
(D) first increase then become stable
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About this Mixed Worksheet
This mixed worksheet is designed for Class 12 Physics practice from Chapter 2 - Electrostatic Potential and Capacitance. It uses the question types selected for this worksheet and keeps the preview representative of the complete set.
Solve the questions first, then use the separate answer key to check the method and identify concepts that need revision. For more practice, continue with the chapter quiz or another worksheet below.
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Attempt the questions without the answer key, check each solution afterwards, and revise the linked chapter concepts before trying another worksheet or quiz.