Question about fuses. When putting a meter to a blown fuse I was getting a reading of mega ohms. A

Question

When putting a meter to a blown fuse I was getting a reading of mega ohms. A regular fuse get a reading of a couple of ohms. Why is that?

Answer 1

A blown fuse shows and infinity readings because it is blown. it has no connection to read across so you will have an infinity reading.

Answer 2

you are possibly reading thru your body. if the fuse is bad, or open, and you are touching both ends of the fuse as you read it, then you are reading your body resistance. only touch one end of the fuse with your hand.  

Answer 3

Ohms measure resistance.  A good fuse should read little to none, while a blown fuse really shouldn't read at all.

Answer 4

ohms measures the reisitance that electricity gets when it tries to travel thru a wire.

to test for ohms:

turn off all power to the appliance . there can be no power traveling in the parts you are testing.

Set the test meter to Ohms. In the meter itself there are one or 2 small batteries that supply all the power for the meter to do the test.



place the test leads aross the part you are testing.

read what the dial says

if its a dial guage it will read a # or it will read ''infinity''.

infinity means that no electricity could get thru the part.

if its a digital guage ''infinity'' usually shows a nothing--no reading at all.

the symbol for infinity is a #8 laying on its side.

Hope this helps.