# Homework help required: Power dissiapted in a load connected to a battery

#### Biiigel

Joined Aug 19, 2020
4
Hi, can someone explain to me what's the relationship between the battery terminals and the load resistance?
and,
Suppose that a load resistor is connected across the terminals of a real battery. What happened to the power dissipated in the load resistor?

Last edited by a moderator:

#### ericgibbs

Joined Jan 29, 2010
18,668
hi B,

E

#### crutschow

Joined Mar 14, 2008
34,074
What are the things that electrical power can do?
That list should include what the resistor does with the power.

Last edited:

#### wayneh

Joined Sep 9, 2010
17,493
Hi, can someone explain to me what's the relationship between the battery terminals and the load resistance?
and,
Suppose that a load resistor is connected across the terminals of a real battery. What happened to the power dissipated in the load resistor?

Are you familiar with the concept of "conservation of energy"? The experiment you describe converts energy in one form into another form. It doesn't create or destroy energy, only converts it. So where does the energy come from and where does it go?

#### RBR1317

Joined Nov 13, 2010
712
What happened to the power dissipated in the load resistor?
dissipate: 1 to break up and scatter; dispel; disperse 2 to drive completely away; make disappear 3 to waste or squander --SYN. scatter

So it would seem that the dissipated power is gone. The energy taken from the battery is lost. But wasn't power also dissipated when charging the battery? Does it seem that no matter what you do, it is a process of dissipating power? What happens when all the power in the universe has been finally dissipated?

Is that a question for a scientist? an engineer? a philosopher? or a priest?

#### crutschow

Joined Mar 14, 2008
34,074
So it would seem that the dissipated power is gone.
But it's not.
As wayneh noted, energy (power is energy per unit time) cannot be destroyed.

#### wayneh

Joined Sep 9, 2010
17,493
Is that a question for a scientist? an engineer? a philosopher? or a priest?
Yes, it is.

#### RBR1317

Joined Nov 13, 2010
712
But it's not.
OK, but if you tried to get it back then you would lose even more power. It's a losing game.

Last edited: