Calculate the maximum current a 140 ohms, 1/2 watt

  • Thread starter Bobzombie
  • Start date
  • #1
2
0
I have looked thought all my notes and books and can not find the formal on how to do this question. I'm slowly going out of my mind any help would be great

Calculate the maximum current a 140 ohms, 1/2 watt resistor can have flowing through it safely.
Enter answer: mA

Then the 2nd part of the question is

What is the maximum e.m.f. which may be applied to the resistor above without causing overheating?

Enter Part 2 answer: V
 

Answers and Replies

  • #2
hotvette
Homework Helper
996
5
Don't you have some fundamental equations that relate voltage (V), resistance (R), current (I), and power (W)? You'll need them.
 

Related Threads on Calculate the maximum current a 140 ohms, 1/2 watt

  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
8
Views
28K
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
9
Views
10K
Replies
1
Views
2K
Replies
1
Views
2K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
1
Views
7K
  • Last Post
Replies
2
Views
707
Replies
3
Views
1K
Top