# Explain why the resistance of several resistors in series is increased if an additional resistor is connected in series with them? [4 marks]

##### 2 Answers

Resistances are added when resistors are connected in series

#### Explanation:

In series circuit,

Therefore, any extra resistors added on to the circuit will always increase the total resistance

The addition of a resistor adds to the struggle of the moving charged particles.

#### Explanation:

It is not exactly the way you asked the question. Assume there were 3 resistors:

#R_1, R_2, R_3, and R_4#

has more resistance than the previous group,

#R_1, R_2, and R_3# .

The term resistance is descriptive. Understanding that should help you visualize the answer to this problem.

A resistor resists the flow of current through it. The charged particles (electrons) have to struggle to get through them. So if you add one resistor to a string of them, the charged particles have that much more of a struggle to get through them all.

I hope this helps,

Steve