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Sunday, 21 February 2016

F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems

F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems

Numerical Problem 13.1: How many electrons pass through an electric bulb in one minute if the 300 mA current is passing through it?
Numerical Problem 13.2: A charge of 90 C passes through a wire in 1 hour and 15 minutes. What is the current in the wire?
Numerical Problem 13.3: Find the equivalent resistance of this circuit, total current drawn from the source and the current through each resistor.
F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain
Numerical Problem 13.4: A rectangular bar of iron is 2cm by 2cm in cross section and 40cm long. Calculate its resistance if the resistivity of iron is 11 * 10(-8) ohm-meter.
Numerical Problem 13.5: The resistance of an iron wire at 0 degree is 1 * 10(4) ohm. What is the resistance at 500 degree if the temperature coefficient of resistance of iron is 5.2 * 10(-3) per kelvin?
F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain 1
Numerical Problem 13.6: Calculate terminal potential difference of each of cells in circuit of figure on the book.
Numerical Problem 13.7: Find the current which flows in all the resistances of the circuit of figure on the book.
F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain 2
F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain 3
Numerical Problem 13.8: Find the current and power dissipated in each resistance of the circuit, shown in figure on the book.
F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain 4F.Sc ICS Notes: Physics XII: Chapter 13 Current Electricity Numerical Problems Asad Hussain 5

Written by: Asad Hussain

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