During the lab, you will build the following circuit. Draw arrows beside the resistors R1 , R2 and R3 to denote the direction of (conventional) current through the resistors. [3] A B R1 E R2 C R3 D Vs In each case, explain why the arrows point in the way that you have drawn. [2]

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above