Measure VL and calculate I by first measuring the voltage ac

Measure V_L and calculate I by first measuring the voltage across the 470 Ohm resistor and using Ohm\'s law with the measured resistor value. Record the results in column two of Table 15.1. Calculation: Calculate R_1 using Ohm\'s law:R_1 =V_R/l, Record the result in the last column of Table 15.1. Calculation: How does the value of R_1 in part 1(b) compare with the value measured with the ohmmeter? Is it possible for a practical inductor to have R_1=0 Ohm? Explain.

Solution

V_L = I*R = 470I

Value of R may be slightly different when measuring with ohmmeter.

Practical inductor have R = 0 ohm only at frequency of 0 Hz