Chapter 23: Q81PE (page 863)
What capacitance should be used to produce a\(2.00\,{\rm{M\Omega }}\)reactance at\(60.0\,{\rm{Hz}}\)?
Short Answer
The capacitance used to produce a reactance is obtained as, \(1.33\,{\rm{nF}}\).
Chapter 23: Q81PE (page 863)
What capacitance should be used to produce a\(2.00\,{\rm{M\Omega }}\)reactance at\(60.0\,{\rm{Hz}}\)?
The capacitance used to produce a reactance is obtained as, \(1.33\,{\rm{nF}}\).
All the tools & learning materials you need for study success - in one app.
Get started for freeA device is turned on and \({\rm{3}}{\rm{.00 A}}\) flows through it \({\rm{0}}{\rm{.100 ms}}\) later. What is the self-inductance of the device if an induced \({\rm{150 V}}\) emf opposes this?
(a) Find the current through a\(0.500{\rm{ }}H\)inductor connected to a\(60.0{\rm{ }}Hz,{\rm{ }}480{\rm{ }}V\)AC source. (b) What would the current be at\(100{\rm{ }}kHz\)?
The 5.00 A current through a 1.50 H inductor is dissipated by a \({\rm{2}}{\rm{.00 \Omega }}\) resistor in a circuit like that in Figure 23.44 with the switch in position 2 . (a) What is the initial energy in the inductor? (b) How long will it take the current to decline to 5.00% of its initial value? (c) Calculate the average power dissipated, and compare it with the initial power dissipated by the resistor.
A multipurpose transformer has a secondary coil with several points at which a voltage can be extracted, giving outputs of 5.60, 12.0, and 480 V. (a) The input voltage is 240 V to a primary coil of 280 turns. What are the numbers of turns in the parts of the secondary used to produce the output voltages? (b) If the maximum input current is 5.00 A, what are the maximum output currents (each used alone)?
The capacitor in Figure \(23.55\) (a) is designed to filter low-frequency signals, impeding their transmission between circuits. (a) What capacitance is needed to produce a \(100{\rm{ }}k\Omega \) reactance at a frequency of \(120{\rm{ }}Hz\)? (b) What would its reactance be at \(1.00{\rm{ }}mHz\)? (c) Discuss the implications of your answers to (a) and (b).
What do you think about this solution?
We value your feedback to improve our textbook solutions.