Which of the following illustrates 2 resistors in a series circuit?

Explanation :

An electrical circuit can be either connected in series or parallel.

Series combination: The current flowing in each resistor is the same and the equivalent resistance is given by :

Parallel combination: The voltage for all components in the parallel combination is the same. The equivalent resistance is given by :

So, our of given options the correct one is (b) because the current flowing in both the resistors is the same.

the bal will not change its velocity.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form