EMFs in series and in Parallel

• orthovector
In summary, the conversation discusses two circuits with 2 batteries each having a 1.5V potential and a 3 Ohms internal resistance, and a resistor of 50 ohms. The first circuit arranges the batteries in series and the second circuit arranges them in parallel. The question is which configuration produces more power. It is stated that the series configuration produces more potential and current, while the parallel configuration can avoid power loss due to lower current. However, the advantage of arranging 2 batteries in parallel is not clear. To determine the answer, the quantitative work must be done to calculate the powers involved.

Homework Statement

2 batteries both 1.5V
Each battery has internal resistance, r=3 Ohms.
one Resistor R=50 ohms is in the circuit.

the first circuit is arranged with the two batteries in Series.

the second configuration puts the two batteries in parallel arrangement.

Which configuration produces more Power?

It's obvious that the series configuration will produce more potential and more current through the Resistor, R.

However, the parallel configuration can avoid more Power loss due to the lower current.

I'm not sure what is the advantage of arranging 2 batteries in the parallel configuration when this configuration produces less current to the Resistor R than the series configuration.

any ideas?

orthovector said:

Homework Statement

2 batteries both 1.5V
Each battery has internal resistance, r=3 Ohms.
one Resistor R=50 ohms is in the circuit.

the first circuit is arranged with the two batteries in Series.

the second configuration puts the two batteries in parallel arrangement.

Which configuration produces more Power?

It's obvious that the series configuration will produce more potential and more current through the Resistor, R.

However, the parallel configuration can avoid more Power loss due to the lower current.

I'm not sure what is the advantage of arranging 2 batteries in the parallel configuration when this configuration produces less current to the Resistor R than the series configuration.

You are given the numbers, so you can calculate the powers involved. Please show your quantitative work and tell us what answer that shows.