So I was curious about parallel circuit. I first built four branches and only filled them with three light bulbs. Surprisingly, it looks something weird like the picture below. When I filled the fourth branch with a light bulb, everything light equally and even brighter.

Okay, here's what I know. I know that the wire that is outside the branch and connects with the fourth branch, has more current for sure because there is no resistance. However, why the first light bulb got brighter than the second one and so on. Secondly, why is the circuit with 4 light bulb is brighter?

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d