Problem with 15 resistors in a series

[sanna]

Hi, I have connected 15 resistor in serie and every resistor is 10 M ohm, But when I measure it I don't have 150 Mohm. I tested and saw that it comes up to 53 Mohm at resistor number 8 and from resistor number 9 begins to reduce. I don't understand why?

 

[cameo_2007]

resistor

hope no other components are connected in between.
1.check the resistor individually.
2.check with a different meter.

 

[analog_prodigy]

resistor

If you are using descrete resistors, check the resistor values individually whether you are using the correct resistors or not.
If you are doing in a simulator, check the resistor models in the model file.
and check the temerature at which you are checking because nwell resistors have positive temperature coefficients and poly resistors have negative temperature coefficients.

 

[sanna]

Re: resistor

thanks, I think it was my Meter.

 

[ameed]

Re: resistor

By the rule
if resistors are in parallel then ,
equivalent resistor= value of resistor/N.
where N:- no of resistors.

if resistors are in parallel then ,
equivalent resistor= value of resistor*N.
where N:- no of resistors.


thx

Added after 1 minutes:

By the rule
if resistors are in parallel then ,
equivalent resistor= value of resistor/N.
where N:- no of resistors.

if resistors are in series then ,
equivalent resistor= value of resistor*N.
where N:- no of resistors.


thx

 

[analog_prodigy]

resistor

that is same as resistors connected in series and resistors connected in parallel

 

[cameo_2007]

resistor

provided,the resistors are to be of the same value,else you 'll have to break that rule.