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14 Cards in this Set
- Front
- Back
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Where on the graph is the magnitude of the electric field the greatest? Explain your answer in terms of the spacing of the equipotentials. |
The greatest magnitude on the field is near the most positive side of the graph; the 5V side near the positive terminal. |
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Can two different equipotentials intersect one another? Why or why not? (Hint: If two equipotentials did cross, what would be the direction of the electric force exerted on a small test charge placed at their intersection?) |
No, it is impossible for a for to have two directions at the same time |
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How much work is required to move a small test charge from one point on an equipotential to a different point in the same equipotential? Explain. |
Starting point and ending point is at 0, or the same point. Delta V= 0: therefore work has to be 0 because Delta V= (-w/q) |
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Describe a uniform electric field in terms of equipotentials. |
equipotential should be equally spread, it should also be perpendicular to the field lines, and parallel lines. |
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Describe a radial electric field in terms of equipotential. |
concentric circles, spacing is not equal |
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Resitance = ? |
1/ slope |
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How did the color of the filament and the brightness of the bulb change as you increase the voltage through the bulb? |
as the voltage increased it became more white and brighter |
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How do the brightness changes and colors for the carbon bulb compare to the tungsten? |
The carbon bulb was more dull than the tungsten bulb, when they had the same voltage, tungsten was far more bright. |
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calculate the resistances of the bulbs and the wire wound resistor for the various voltages and currents recorded in Tables 1, 2, and 3. Show work for 1 |
R=(Delta V/I) |
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Calculate the slope |
Measure the length of the y and x-axis, pick to random points on the line measure that distance, and then multiply that with the ratio found in the first step |
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Sketch the circuit diagram for a parallel network of two resistors (R2 and R3) connected in series to one resistor (R1). |
______________________Ii__________________________________________(1)_www__________(2)__www______ __ ___(3)___www______ |
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measure the resistance of each resistor and record it below |
R1= 100 R2=326 R3=549 |
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Calculate the Total Resistance |
Rtotal= R1+ ((1/R2)+(1/R3)) =304.54 Ohms |
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How does the current in resistor two compare to the current in resistor 3? |
ans: R3/R2 |
