PHYS208 Fundamentals of Physics II

Answer for Ch. 28, 67E

4.6 time constants

Answer for Ch. 28, 68E

time constant is 2.41 microsec.

capacitance is 161 pF.

Answer for Ch. 28, 69P

rate of charge increase 0.96 microA
rate of energy storage 1.08 microW
power dissipated by resistor 2.74 microW
power delived by battery 3.82 microW

Answer for Ch. 28, 71P

RC = 0.35 s;   thus R = 2.35 megaohm

Answer for Ch. 28, 76P

Initial charge separation is 30 microC.
Final charge separation is 17 microC.


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Last updated March 12, 1998.
Copyright George Watson, Univ. of Delaware, 1998.