{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

midterm1_2010

# midterm1_2010 - Exam General Physics 219 Fall 2010 Midterm...

This preview shows pages 1–5. Sign up to view the full content.

Exam General Physics 219 Fall 2010 Midterm 1 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Problem 1 a) Compute the total resistance of the configurations in the figure. 2
Problem 2 I want to build an oscillator circuit but in the specifications it requires one 1 k Ω resistor and one 1 . 5 k Ω resistor. In my box I have several 3 k Ω resistors but nothing else. a) Can you tell me how to use them to replace the 1 k Ω and 1 . 5 k Ω values? Namely, draw two different resistor circuits one with total resistance 1 k Ω and the other 1 . 5 k Ω but such that each only contains 3 k Ω resistors. 3

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Problem 3 The 78L12 is a voltage regulator. In one input the voltage is 18V and in the other is 12V. See figure. If the current going through the device is I=100mA, b) Find the value of a resistor R which would produce the same potential difference between its terminals when the same current goes through it. (see figure) a) How much power is consumed by the circuit (or equivalently, the resistor)?
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 12

midterm1_2010 - Exam General Physics 219 Fall 2010 Midterm...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online