An ohmmeter is on the R x 10 scale and reads 1500ohm. The scale is then changed to the R x 1 scale.

a, Describe the procedure you need to follow to ensure the meter indicates an accurate reading.
Digital Meter: Describe what must be done to ensure maximum accuracy is achieved.

b, In which direction would the pointer move?

c, Would the new reading be more or less accurate than the original reading? Why?

To clarify A is asking what must be done to ensure an accurate reading with a digital meter but then B is talking about an analog meter.

I know for A you must select the appropriate scale on the meter I am just having troubles explaining why.

Will donate some amount of fg for the first person who helps me finish this homework.

This post was edited by ROM on Sep 9 2014 02:33pm

A. Touch the two prongs together and make sure your getting continuity reading of 0 by touching the two probes together and adjusting it on the meter.

B. To the right? An ohmmeter has like 4 or 5 different scales on it, all in the same direction.

C. Less acurate, Rx10 gives the option of another decimal spot.

This post was edited by ozzyarmy3 on Sep 9 2014 03:36pm

For A keep in mind we are talking about a digital meter. Touching the leads together doesnt do anything. It reads 0 all the time. You are talking about resetting a analog meter.

You can bring it in to have it calibrated.
Check the battery life and make sure its good
change the fuse out in the meter itself "not 100% if that's necessarily going to help with accuracy, since if a fuse is bad it just won't work."

That's all I can think of, nowadays those things are disposable lol.

I believe the question is asking why is it important to select the appropriate range/scale. ie: Rx1, Rx10.

This post was edited by ROM on Sep 9 2014 04:49pm

you won't use rx1 if it's 1000000 ohms, would you?
use a multiplier that is appropriate

Update

So ignore part a. I have the answer for that.

Part b.
the pointer would move left. I have to explain why.

Part c.
It would be less accurate. I have to explain why.

it's a scaling factor
are you sure it moves to the left?
are you sure it's less accurate?

Not 100% sure. If you could help me narrow down my train of thought that would be amazing.

but if it's read R (resistance) x 10 then changing the scale to R x 1 whatever number is displayed has to be larger to represent the same number.
R x 10 = 1500 Ohm
R x 1 = 15,000 Ohm.
Since a multimeter or ohmeter is read from
(left) Infinity to Zero (right)
The pointer would be deflected left.

The number would be less accurate since you get an easier reading closer to zero.

As you can see I am having a lot of troubles just trying to explain the concept. I can't write this down on my report because it seems like rambling.

/edit

It doesn't seem like rambling. It is rambling.

This post was edited by ROM on Sep 10 2014 03:23am

rx10 at 1500 is 1500*1000
rx1 meter needle will move to the left,yes
will it be less accruate? not exactly true, but the short answer is yes. it most definately looses precision