Law of Length Connect terminals 1\' and 2\' together, then connect the power sup
ID: 1633251 • Letter: L
Question
Law of Length Connect terminals 1' and 2' together, then connect the power supply. Using the 5V range of the voltmeter measure the voltage between 1 and 1'. Record in Table 3. Measure the voltage drop between 1 and point midway between 1 and 1'. Record in Table 3. Repeat for quarter of length and 1/8 of a length. Record in Table 3 What can you say about the rate of change of voltage with wire length? How is this related to the slope of the graph? If you reduce the length of wire to a third of length, what can you say about the voltage measured? Is it bigger/lower than the voltage measured for the full length? By how much? Explain. The resistance of a conductor is proportional or inverse proportional to its length?Explanation / Answer
5. resistnace is proportional to length of wire and voltage = current * resisitance so voltage also proportional with wire length
a) rate of change of voltage is constant with wire length
b) slope of graph = rate of change of voltage
6. assuming constant current as experiment not given there in detail, volatge would lower than the voltage measured for full length.
voltage would also become 1/3 so it will decrease by 1-1/3 = 2/3 of voltage measured for full length
7. proprotional
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