Relationship between closing a switch and the total battery current

[kbrockway2021]

Homework Statement

This problem solution says that by closing the switch, battery current will increase. However, the voltage is the same, and the resistance is only increasing by adding another light bulb. So how is the current increasing

Relevant Equations

V=IR

 

[BvU]

Hello @kbrockway2021 ,

$\qquad$ !​

See it this way: you add another path through which current can flow -- without changing anything in the original path, so here the current stays the same. When the swich is closed, the current through C will be additional.

$\$

 

[phinds]

You need to study the basics of serial and parallel