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CBSE Class 12 Physics Electric Circuits Objective Questions. Please refer to the examination notes which you can use for preparing and revising for exams. These notes will help you to revise the concepts quickly and get good marks.
1. Calculate the resistance between P and Q in the following network. Each element has resistance 3Ω.
(a) 6 Ω (b) 4 Ω (c) 3 Ω (d) 2 Ω
2. The resistance between P and Q in the following combination of resistances is
(a) 8 Ω (b) 6 Ω (c) 5 Ω (d) 4 Ω
3. The effective resistance between points P and Q is
(a) 150 Ω (b) 120 Ω (c) 90 Ω (d) 80 Ω
4. Six resistances, each equal to 4 Ω are connected as shown in the figure. The effective resistance between any two vertices is
(a) 2 Ω (b) 8 Ω (c) 12 Ω (d) 16 Ω
5. The equivalent resistance between the points A and B of the following circuit is
(a) 5 Ω (b) 10 Ω (c) 15 Ω (d) 20 Ω
6. Seven resistors, each of 1 Ω, are connected as shown in the figure. The effective resistance between P and Q is
(a) 34Ω (b) 78Ω (c) 23Ω (d) 7Ω
7. The resistance across points D and E of the circuit is
(a) R/2 (b) R/3 (c) R/4 (d) 2R
8. Five cells each of internal resistance 0.2 and e.m.f. 2V are connected in series with a resistance of 4Ω. The current through the external resistance is
(a) 0.2 A (b) 0.5 A (c) 1 A (d) 2 A
9. Assume that the internal resistance of battery is zero and the key is closed in the following circuit, the reading of the ammeter is
(a) 0.25 A (b) 0.5 A (c) 1.0 A (d) 2.0 A
10. In the following circuit, the reading of the voltmeter is
(a) 5 V (b) 10 V (c) 15 V (d) 16.5 V
11. A cell of e.m.f. E is connected across a resistance R. The potential difference between the terminals of a cell is measured equal to V. The internal resistance of the cell is
(a) (E – V)R (b) 2(E− V)R/ V (c) 2(E− V)R/E (d) (E− V)R/V
12. In the circuit shown in the figure, the heat produced in the 5 Ω resistor, due to the current flowing through it, is 10 calories per second. The heat generated in the 4 ohm resistor is
(a) 1 cal/s (b) 2 cal/s c) 3 cal/s (d) 4 cal/s
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Useful Resources and Notes for Class 12 Physics Chapter 01 Electric Charges and Fields
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Review targeted study resources for Chapter 01 Electric Charges and Fields tailored for Class 12 learners. Utilizing these structured notes and quick-revision tools ensures complete alignment with current CBSE evaluation standards.
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Our advanced study package for Chapter 01 Electric Charges and Fields includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.
The Mind Maps provided for Chapter 01 Electric Charges and Fields act as visual anchors which will help faster recall during high-pressure exams.
Yes, teachers use our Class 12 Physics resources for lesson planning as they are in simple language and have lot of solved examples.
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Yes, our subject matter experts have updated the Chapter 01 Electric Charges and Fields material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.