HP 35s User Manual

 
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HP 35s  General applications – Part 2 
 
hp calculators - 3 - HP 35s  General applications Part 2- Version 1.0 
 
Application 2: Electrical Engineering 
 
Example 1: Three resistors of 200 ohms, 500 ohms and 220 ohms are in parallel. What is the equivalent resistance? 
 
Solution: In RPN mode: !##3##34!!#343 
 In algebraic mode:33!##243##243!!#$ 

 Figure 2 
Answer: The equivalent resistance is 86.6 ohms 
 
Application 3: Civil Engineering 
 
Example 1: Runoff of rainfall from an area...

 
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hp calculators 
 
 
 
 
HP 35s  General applications - Part 3 
 
 
 
 
Other applications 
 
Practice solving problems 
 
- Application 1: True Heading 
 
- Application 2: Thrown object 
 
- Application 3: Gas Pressure 
 
 
 
   

 
hp calculators 
 
HP 35s  General applications – part 3 
 
hp calculators - 2 - HP 35s  General applications – part 3- Version 1.0 
 
General applications 
 
This training aid will illustrate the application of the HP 35s calculator to several problems in other areas. These 
examples are far from exhaustive, but do indicate the incredible flexibility of the HP 35s calculator.  
Practice solving problems  
Application 1: True Heading 
 
Example 1: Before a plane takes off, a preflight plan must be filed...

 
hp calculators 
 
HP 35s  General applications – part 3 
 
hp calculators - 3 - HP 35s  General applications – part 3- Version 1.0 
 
 Figure 2 
 
 Figure 3 **
Answer: After 2 seconds, the object is at a height of 125.6 feet and traveling at a velocity of 30.6 feet per second.  
 
Application 3: Gas pressure 
 
Example 1: The internal pressure of a tank of gas is 1100 psi at room temperature (298 degrees Kelvin). What is the 
internal pressure if the temperature rises by 35 degrees Celsius? 
 
 New...

 
hp calculators 
 
 
 
 
hp calculators 
 
 
 
 
HP 35s  Applications in Electrical Engineering 
 
 
 
 
Applications in electrical engineering 
 
Practice solving problems in electrical engineering 
 
- Application 1: Transmission line impedance 
 
 
 
   

 
hp calculators 
 
HP 35s  Applications in Electrical Engineering 
 
hp calculators - 2 - HP 35s  Applications in Electrical Engineering - Version 1.0 
 
Applications in electrical engineering 
 
This training aid will illustrate the application of the HP 35s calculator to several problems arising in electrical 
engineering. These examples are far from exhaustive, but do indicate the incredible flexibility of the HP 35s calculator.  
Practice solving problems in electrical engineering  
Application 1:...

 
hp calculators 
 
HP 35s  Applications in Electrical Engineering 
 
hp calculators - 3 - HP 35s  Applications in Electrical Engineering - Version 1.0 
 
 
 Figure 5   
Answer: 600.08 ohms.  
 
Example 3: Compute Z0 for an air line consisting of a single 0.1285 inch wire six inches from a ground plane.  
Solution: Note that ! = 1, since this is an air line. 
 
 In RPN mode: *&)#*(2#!0%*$),(-
----340  
 In algebraic mode:--*&)(*103420!(%*$),-
----# 
 
 Figure 6   
Answer: 313.44 ohms.