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21 Cards in this Set
- Front
- Back
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How did the color of the filament and the brightness of the bulb change as you increased the voltage through the bulb? |
As the voltage increased, the brightness increased and color went from dull orange to white. |
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How did the color of the filament and the brightness of the bulb change as you increased the voltage through the bulb? |
No light was detected until 60V. Color went from dark orange to light orange/white. Brightness increased as voltage increased. |
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How do the brightness changes and colors for the carbon bulb compare to tungsten? |
Tungsten bulb was much brighter and had more variance in color ending with white. Carbon bulb didn't even show a hint of light until 60V. |
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How is the electrical energy supplied by the variac dissipated by the light bulbs? |
The energy is dissipated through heat and light. |
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Do the tungsten filament and carbon filament light bulbs use more and more power? |
Yes, as the voltage increased both bulbs became brighter and lighter in color. Our calculations/tables also reflected that. The tungsten bulb appeared to use more power than the carbon bulb. |
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Which of the three circuit elements clearly obeys Ohm's Law? |
The wire wound resistor obeys Ohm's Law because the R values and slope of the graph remain constant. |
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What does this result indicate about resistors connected in series? |
They have the same current flowing through them. |
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What does this result indicate about resistors connected in parallel? |
Regardless of the resistance, when resistors are connected in parallel the voltage stays the same. |
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How does the current in resistor two compare to the current in resistor three? |
The current in resistor two is greater than the current in resistor three. This is because current gets smaller as resistance increases in series. |
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How does the current in resistor one compare to the current in resistor three? |
The current in resistor one is greater than the current in resistor 3.* |
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How does the current in resistor two compare to the current in resistor three? |
The current in resistor two is slightly greater than the current in resistor three. As resistance increases, current decreases. |
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How does the current in resistor one compare to the current in resistor three? |
The current in resistor one is greater than the current in resistor three. As resistance increases, current decreases. |
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How is the direction of the current flow as the capacitor discharges related to the direction of the current flow as the capacitor charges? |
If the capacitor is positive then the resistor must be negative in order to follow Ohm's Law and make it equal to zero. Vs + Vc + Vr = 0 \ + - |
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How well does Kirchoff's Loop Rule hold for the RC series circuit studied in lab? |
It held true. As the source rose to one the capacitor rose and the resistor decreased to equal one. As the source dropped to zero, the capacitor and resistor increased and decreased again to equal zero. |
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What is the relationship between these two variables? |
As the current increases, the force increases as well. |
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What does this tell us about how changes in the current will affect the force acting on a wire that is inside a magnet? |
As the current is increased, the force will also increase on the wire. |
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How are these two magnetic fields related? |
The magnetic field is the same. |
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What is the relationship between these two variables? |
As the length is increased, it will cause the force to increase on the wire. |
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What does this tell us about how changes in the length of the wire affect the force that it feels when it is in the magnetic field? |
As the length is increased, it will cause the force to increase on the wire. |
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Does the lens obey the Law of Reflection? |
Yes, because the light reflects off of the prism at the exact or almost the exact same angle as the angle of incidence, which is what the Law of Reflection states. |
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If you refract the light air to glass (ni<nr), will you ever get total internal reflection? |
No, you can't take the inverse sine of a number bigger than one. You get imaginary numbers. |
