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What orientation of the coil allows current to flow? What happens as you rotate the windings 180 degrees from this position?
Why did we remove the insulation from only one side of the axle tail in the set-up? What would happen if we removed all of the insulation from both ends?
What two items in the experiment could you change to easily increase or decrease the speed it rotates? Remember that the force on the windings is proportional to both the magnetic field strength and the current.
Why do you think the number of loops in the coil is important? How would the force on the loop change if there were fewer turns of wire? Remember that the force depends on the amount of charge moving in one direction.
Given the power available and the size of the coil, there is an ideal number of coil turns that make a motor that spins fast without being unstable. What problems do you think you would run into if you made a coil with 50 turns of wire using the same setup?
What happened when you connected the battery to the hand generator? Explain why.
A 500-turn solenoid is 23 cm long, 1.5 cm in diameter, and carries 65 mA. How much magnetic energy does it contain
Determine the energy of the incident electron. How many coulombs of protons and electrons are in each penny.
question1how much 235u is consumed per year in gy to produce sufficient electricity to continuously run a 100-w light
For a double-slit experiment, the inside edges of two 1.73-mm wide slits are separated by a distance of 1.35 mm. find the separation of the bright fringes on the screen
A stone is thrown upward with an initial velocity of 6 m/s. What maximum height will the stone reach
25.00kg lead sphere is hanging from a hook by a thin wire 3.50m long, and is free to swing in a complete circle. What must be the minimum initial speed of the dart
A 3.6 m long steel wire has a cross-section area of 0.047 cm2. Its proportional limit has a value of 0.0015 times its Young's modulus, What is the maximum weight that the wire can support
A current-carrying wire passes through a region of space that has a uniform magnetic field of 0.76 T. determine the minimum current needed to levitate the wire
The engine of a model rocket accelerates the rocket vertically upward for 2.0 s as follows: At t = 0, the rocket's speed is zero; at t = 1.0 s, determine the instantaneous acceleration of the rocket at t = 1.5 s
One of the tenets of the pseudoscience (i.e., "false science") of astrology is that, in some mysterious way, the positions of the planets at the time of the person's birth somehow influence the characteristics of that person.
A pair of speakers separated by 0.700m is driven by the same oscillator at a frequency of 662Hz. An observer, originally positioned at one of the speakers, begins to walk along a line perpendicular to line joining the speakers. (Assume the speed o..
.250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
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