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Electricity and Magnetism
Can you name the Answers to These Conceptual/No Calculator Problems?
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--------------------------------------------------TYPE "I GIVE UP" TO SKIP THE PROBLEM!!!!!!!!!!--------------------------------------FOR BONUS QUESTIONS: Write down answers, you will need them
There is a loop of wire in the middle of your screen and a uniform B field in the plane perpendicular to your screen (at/away from you), WRITE OKAY
The B field's magnitude increases to a new constant value, given that the area of the loop remains constant, what increases directly in proportion to the B field
Given that the flux through the loop increases, what two forces are now acting on/in the loop (hint: one is not measured in Newtons)
(BONUS: The Greek letter 'Phi' represents Magnetic Flux, how many letters are in the Greek alphabet?)
The B field increases even further, now it's HUGE (25T)! What affect does this have on the net force acting on the loop?
The B field now begins the process of calming down while pointing at you, which direction does the current flow in the loop
What strapping (yet not so young) lad articulated the law that gave you that answer? (Last name will suffice)
New picture, a baseball comes flying OUT of left field TOWARDS a batter! The batter's name is Pikachu and he is creating a massive E field towards left field! WRITE OKAY
(BONUS: What is Pikachu's Pokedex entry number)
The baseball had been previously hit by Hitmonlee, and was left buried into the wall. WRITE OKAY
The umpire handed out three types of balls that day, -3C electroballs, +5C protoballs, and neutraballs, which ball did Hitmonlee hit
That's a charged ball!
Pikachu's bat (50g) is neutrally charged, and once the ball comes to him, he turns off the E field and swings, upon making contact, is the bat now positively or negatively charged
Is the bat now a. -1.5C b. -3.0C or c. not enough information
The two objects are not equal, thus you do not know how much charge is passed over
Is his bat now heavier or lighter
It just gained electrons!
Pikachu in fact isn't very good at baseball and tips the 15g ball straight up in the air; note: the stadium is in fact a massive, infinitely long charged solenoid, WRITE OKAY
If Pikachu was standing in the center of the solenoid (r=150m), and the current (30A) flows counterclockwise around the solenoid, how much force acts on the ball
Magnetic fields do not create forces on objects moving in parallel
In anger, Pikachu uses his powers to send his bat perpendicular to the ground at the pitcher. WRITE OKAY
Electabuzz is waiting on deck, positioned halfway between Pikachu and 1st base just out of bounds, and creates an E field and the bat flies into his hand. WRITE OKAY
Towards which base (1-2-3-Home) did he send the E field?
Bat is negative
The energy potential within Electabuzz is 100V; after his rage, Pikachu's electric potential is 50V. WRITE OKAY
Assuming the bat is -0.1C, how much work did Electabuzz's E field do?
We=-q * (Vf-Vo)
New picture. Frodo and Sam are walking through a swamp. Unbeknownst to them, the swamp is a big circuit with electric-powered torches lighting their path. WRITE OKAY
Their bare feet naturally follow the path with the least resistance. At a point in the swamp they come upon two paths. WRITE OKAY
(BONUS: How many hobbits are in the Fellowship?
Down one path lies a 3 ohm torch and a 4 ohm torch in series. The other path contains a 7 ohm torch and an unknown torch in parallel. WRITE OKAY
Can you find out which path they take?
Which one is it then? (1st or 2nd)
(BONUS: If Frodo had taken the first path, and had sank underwater an inch per ohm of resistance, how far would he have traveled in the +y direction?)
New picture; Yoda's secret formula for building lightsabers is released. Get ready, it's complicated. WRITE OKAY
There is a circuit that runs up through the handle of the light saber with the battery at the bottom. The two wires are mirrors of each other as they go up the handle. WRITE OKAY
One half of the circuit will be described, note the other side is the exact same. WRITE OKAY
First there is a 4 ohm R, followed by a 2 ohm R, then there is a 12 ohm R in parallel with a 24 ohm R. After the parallel R's, those two wires reconnect. (still just the one side)
The two sides of the circuit then connect at the top with a special gem with 14 ohms of resistance. What is the total resistance of the circuit?
(BONUS: If there was a game in which you lost a point for every finger you lost, how many points would Luke Skywalker have?)
If the battery has a terminal voltage of 420V, what is the voltage drop across one of the first 4 ohm resistors
(BONUS: How many planets does the Death Star actually destroy?)
BONUS: Add up all of the BONUS answers!
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