Material for this Lab Experiment 6 Manual General Lab Docume

Material for this Lab Experiment 6 Manual General Lab Documents TOC and Introduction Appendix A: Error Analysis for the Physics Labs Appendix B: Introduction to Spreadsheets and EXCEL 2010 Problem Statement: A 1.0 mH inductor is connected in series with a 100.0 Ohm resistor. Part (a) Ignoring any resistance in the inductor itself, what is the time constant in seconds for \"discharging\" the inductor? Numeric : A numeric value is expected and not an expression. Material for this Lab Experiment 6 Manual General Lab Documents TOC and Introduction Appendix A: Error Analysis for the Physics Labs Appendix B: Introduction to Spreadsheets and EXCEL 2010 Problem Statement: A coil rotates at 50.0 revolutions per second in a field of 2.3 10^-2 Tesla. Part (a) If the coil has a cross-sectional area of 20.0 cm^2 and has 1000.0 turns, what is the amplitude in V of the EMF in the coil? Numeric : A numeric value is expected and not an expression.

Solution

Problem 6: For an inductor L and resistance R, the time constant is given as T = L/R

Hence, the required value of time constant would be: T = L/R = 1 x 10^-3 / 100 = 10^-5 seconds

Problem 7: For a coil with area A, number of turns as n rotating with an angular speed of w in a uniform magnetic field of B, the maximum voltage induced in the coil is given as BAnw

That is amplitude of the emf = BAnw = 2.3 x 10^-2 x 20 x 10^-4 x 1000 x 50 x 2*3.14

Amplitude = 2.3 x 2*3.14 = 14.444 Volts