197k views
0 votes
To draw the most power from a battery, should you connect a small or a large resistance across its terminals? Explain.

a) Small resistance.

b) Large resistance.

c) No effect on power.

d) It depends on the battery type.

User TheAlbear
by
7.4k points

1 Answer

4 votes

Final answer:

To draw the most power from a battery, a small resistance should be connected to its terminals because power is inversely proportional to resistance, following the formula P = V^2/R.

Step-by-step explanation:

To draw the most power from a battery, you should connect a small resistance across its terminals. The reasoning behind this is based on the power formula P = V2/R, where P is power, V is the terminal voltage, and R is the resistance. With a small resistance, the power output is maximized since power is inversely proportional to resistance.

It's essential, however, not to connect a resistance so small that it essentially shorts the battery, leading to excessive current and potential damage. This principle applies regardless of battery type; however, the actual resistive value for maximum power depends on the specific characteristics of the battery, such as its internal resistance.

User Ngokevin
by
7.0k points