Notes of Chapter 13: Current Electricity of “Physics XII” for FSc Part 2 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 2 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan.

The amount of electric charge that flows through a cross section of a conductor per unit time is known as electric current.If ∆Q is the amount of charge flow through a cross-section in time ∆t , then the electric current I is described mathematically as I=∆Q/∆t.

• Electric current
• Current direction
• Conventional current
• Electronic current
• Current through metallic conductor
• Current without battery
• Current with battery
• Drift velocity
• Steady current
• Source of current
• Types of Source of current
• Effects of current
• Electroplating
• Ohm`s Law
• Ohmic
• Non Ohmic
• Semiconductor diode
• Combinations of resistors
• Difference b/w Resistance and resistivity
• Conductance
• Colour code for carbon resistances
• Rheostat
• Thermistors
• Electric power
• Electromotive force
• Potential difference
• Kirchhoff`s Law
• Circuit problems
• Wheatstone bridge
• Applications of Wheatstone bridge