Veo en youtube es buena explicacion hablame por mensaje y te doy el link
(+105) + (+80) = 185 units.
The resultant amplitude of the wave is 185 units.
Show us Figure 1 and we'll have the answer in a flash. Without it, not a chance. That's why it's there.
Answer: The pattern of the battery is wrong, the bulb is broken , the wires of the circuit is broken , the switch is not closed .