Two bulbs are connected in series (shown above) as a branch of a larger circuit. Both bulbs are lit but one of the bulbs is bright (shown on the left) and the other is dim (shown on the right). Which of the following statement is correct about the direction of current in the bulbs? Q) a. Since the bulb on the left is brighter the current must be coming from the left Ob. Since the bulb on the right is dimmer the current must be coming from the right. To If you break the circuit between the bulbs and see which bulb stays on, the current must be coming from that side. Od. If you place compasses around a vertical section of the wire and observe the orientation of the compass needles, you can determine the direction of the current e. [Without a commercial ammeter, the direction of the current cannot be determined.]