Four unequal resistors are connected in series with each other. which one of the following statements is correct about this combination? a. the equivalent resistance is less than that of the largest resistorb. the equivalent resistance is more than the largest resistancec. the equivalent resistance is equal to that of any one of the resistors. d. the equivalent resistance is equal to average of the four resistancese. the equivalent resistance is less than that of the smallest resistor

B. The equivalent resistance is more than the largest resistance

Explanation:

When N resistors are connected in series with each other, the same current flow through them:

(1)

On the contrary, the total voltage of the circuit is equal to the sum of the voltages dropped on each resistor:

Using Ohm's law, , we can rewrite this equation as

However, we said that (1) the current is the same for each resistor, so we can simplify the previous equation as:

So, the equivalent resistance of N resistors connected in series is equal to the sum of the individual resistances. As a consequence, we have that is always larger than any of the individual resistances, so the correct statement is

B. The equivalent resistance is more than the largest resistance

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.