Is resistance related to heat produced?

There are two case affect the heat.
In a parallel circuit,the voltage passing though the two resistors are the same.
By P=V^2/RIf the resistance is more higher,the power will be less.
Therefore,higher resistance cause lower heat energy in parallel circuit.

In a series circuit,the current passing though the two resistors are the same.
By P=I^2R
If the resistance is more hight ,the power will be higher.
Therefore,higher resistance cause higher heat energy in series circuit.

2008-12-14 11:07:51 補充：
條式係I^2R,唔係I^2/R

both P=V2/R and P=I2/R apply for parallel and series curcuits!
Just be aware that V need to be the potential difference across a certain
resistor and I be the current passing through it when you apply these two
formula

Forget about parallel or serial circuits. Power = heat generated
Just calculate each wire's resistance and current and get the power P=I2/R, thus the heat generated

Heat generated at the resistor = I^2*R. If the same current pass through resistors for two different cases, more heat will be generated for the case with higher resistance. However, you usually get a higher current I, if you use a smaller value of resistor.