For an experiment, a student wants to maximize the power output for a circuit. The student has three resistors of resistances 512, 1012, and 20 S, and a 5 V battery. Which of the following best describes how the students should arrange the resistors so that when they are connected to the battery it will maximize the power output for the circuit and explains why? a) The student should place all resistors in parallel, because the battery supplies more current to a parallel combination than to a series combination b) The student should place all resistors in parallel, because the potential difference across all the resistors is less for a parallel combination than for a series combination c) The student should place all resistors in series, because this creates the largest equivalent resistance d) The student should place all resistors in series, because the battery supplies more current to a series combination than to a parallel combination e) The student should place all resistors in series, because the potential difference across all the resistors is greater in series than in parallel

c) The student should place all resistors in series, because this creates the largest equivalent resistance.

Explanation: Resistors are electric components which functions changing electrical energy in heat or the value of the potential difference. It can be arranged in series or in parallel.

In parallel, the potential difference is the same as the battery and the current is "distributed" through each resistor. In this way, if each resistor has the same  resistance, the current is divided equally. Because of that, alternatives a and b are not correct.

In series, the current is the same through all the resistors and it is the potential difference that is divided in each resistor. For those reasons, alternatives d and e are false.

To determine equivalent resistance for resistors in parallel is:

For resistor in series:

The largest equivalent resistance would be for resistor in series, since the result is the sum of all the resistance, so, alternative c is correct.

a and b sometimes have a positive value

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation