MAE140 Winter 2002 Homework 1 - due Thursday January 17, 2002
1: T&R Exercise 1-20
2: T&R Exercise 1-22
3: T&R Exercise 2-8
4: T&R Exercise 2-13
5: T&R Exercise 2-15
6: T&R Exercise 2-26
7: T&R Exercise 2-32
8: T&R Exercise 2-51
9: T&R Exercise 2-53
10: Our circuit design requires an accurate 200 ohm resistor. All that we
have available are 10% tolerance
resistors plus some rotary potentiometers (variable resistors in which the
value is determined by the
position of a dial or knob, just like the volume control on your stereo).
These potentiometers are hard
to set accurately - we can only set them to one of ten positions. Consider
what range of value or net resistance
is achieved when we connect in parallel a 220 ohm resistor in parallel with
a potentiometer which can take
values 10K ohms to 1K ohms in 1K ohms increments. How can we use this to
get to closer than 10% of the
desired 200 ohm value?