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Timestamps:
0:00 Introduction
1:02 Cells
3:07 Charging & Discharging of Cell
4:45 Internal Resistance of a cell
6:00 EMF of a cell
6:59 EMF & Internal Resistance of a cell
12:56 EMF & Terminal potential difference of a cell
17:09 Current drawn from a cell
19:55 Grouping of Cells
21:28 Cells in Series
25:11 Cells in Parallel
30:45 Series vs. Parallel
31:56 Problem 1
35:02 Problem 2
38:01 Kirchoff’s Laws
38:41 Kirchoff’s Junction Law
40:31 Kirchoff’s Loop Law
50:40 Problem 1
58:23 Problem 2
1:10:13 Wheatstone Bridge
1:12:46 Meter Bridge
1:16:57 Problem 1
1:19:24 Problem 2
1:20:37 Potentiometer
1:21:32 Voltmeter
1:27:52 Potentiometer vs. Voltmeter
1:28:29 Potentiometer:Construction
1:30:10 Potentiometer:Working
1:38:36 Comparison of Emf’s of 2 cells
1:40:08 Problem 1


In this video we will cover:-
1.(a) Three resistors 1 Ω, 2 Ω, and 3 Ω are combined in series. What is the total resistance of the combination?
(b) If the combination is connected to a battery of emf 12 V and negligible internal resistance, obtain the potential drop across each resistor.
2.Six lead-acid type of secondary cells each of emf 2.0 V and internal resistance 0.015 Ω are joined in series to provide a supply to a resistance of 8.5 Ω. What are the current drawn from the supply and its terminal voltage?
3.A battery of 6V and internal resistance 0.5Ω is joined in parallel with another of 10V and internal resistance 1Ω. The combination sends a current through an external resistor of 12Ω. Find the current through each battery.
4.Determine the current in each branch of the network:
5.In a meter bridge, the balance point is found to be at 39.5cm from the left end A, if an unknown resistor X is in the left gap and a known resistor Y of resistance 12.5Ω is in the right gap. Determine the resistance of X.
6.Determine the balance point of the previous bridge if X & Y are interchanged.
7.In a potentiometer arrangement, a cell of emf 1.25 V gives a balance point at 35.0 cm length of the wire. If the cell is replaced by another cell and the balance point shifts to 63.0 cm, what is the emf of the second cell?
8.NCERT class 12 physics chapter 3
9.NCERT class 12 physics chapter 3 Current Electricity
10.NCERT notes class 12 physics chapter 3 Current Electricity
11.NCERT solutions class 12 physics chapter 3 Current Electricity
12.Class 12 physics chapter 3 CBSE
13.Class 12 physics current electricity JEE questions

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