Assignment 1(Fall 2012) Circuit Theory (Phy301) Due Date: November 05, 2012
Q 1: Find the equivalent resistance RTof given circuit. Write each step of the calculation to get maximum marks. Draw the circuit diagram of each step otherwise you will lose your marks.
Q 2: Determine VR1, R2, and R3 for the given circuit. Mention the units of calculated value.
Q 3: Answer the following questions.
- I. If you wish to increase the amount of current in a resistor from 100mA to 150mA by changing the 20V source, by how many volts should you change source? To what new value should you set it?
- II. How much power is produced by 500mA of current through a 4.7kΩ resistor?
- III. There are four equal value resistors in parallel with a 12V source, and 4mA of current from the source. What is the value of each resistor?
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