Well, most active and passive basses when you don't use EQ are very similar. After all, the front end of your head is basically an active preamp! An active bass merely moves part of that EQ circuit into the bass where it more convenient to adjust while you are playing.
In the Common Application, it says that the Personal Essay should be at least 250 words, and attached on a separate sheet (presumably, if you're submitting it online, you attach a one-page file).
Many times an instructor will tell you how long an essay or a research paper should be or give you a page number range, such as saying the paper should be between 5-7 pages. If you don't have a page range, the length of your essay can depend on a lot of things. When in doubt, ask for guidance. If you can't get help, you'll have to guess. During an essay test, usually one or two paragraphs will answer short essay questions. For big essay tests, where there is only 1 question for a whole hour-long test, you will be expected to compose an entire essay. In that case, write 5 paragraphs including all the parts of a composition of between 1-2 written pages.