Two resistors one with a resistance of 20 and the other with

Two resistors (one with a resistance of 2.0 and the other with that of 6.0 ) are connected to a battery. Which one produces the most joule heating? Two resistors (one with a resistance of 2.0 and the other with that of 6.0 ) are connected to a battery. Which one produces the most joule heating? the 2.0- resistor both produce the same the 6.0- resistor you can\'t tell from the data given

Solution

Heat dissipated across resistor is given by:

H=P*t

H=(V²/R)*t

But power rating determines the heat dissipated across resistor

P=V*I

so higher the resistance higher is the heating losses

therefore 6 ohm resistace will dissipate more heat