COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 18, Problem 90QAP
To determine
(a)
Whether the probe in the circuit will be in series or parallel with the element.
To determine
(b)
Whether the probe connected across the circuit element will have low or high resistance and low or high capacitance in the circuit
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Consider the electric circuit shown in the sketch, consisting of a 12.0-V battery and three capacitors connected partly inseries and partly in parallel. Find (a) the equivalent capacitance of this circuit and (b) the total energy stored in the circuit.
A capacitor with a capacitance of 3.5 uF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 10.5 kOhm, and a battery that has a potential difference of 105V.
(a) Immediately after the switch is closed, what is the voltage drop VC, in volts, across the capacitor?
(b) Immediately after the switch is closed, what is the voltage drop VR, in volts, across the resistor?
(c) Immediately after the switch is closed, what is the current, in amperes, through the resistor?
(d) Find an expression for the time after the switch is closed when the current in the resistor equals half its maximum value.
(e) What is the charge Q, in microcoulombs, on the capacitor when the current in the resistor equals one half its maximum value.
Look at a circuit
made up of a
resistor, a battery, a
capacitor, and a
switch. Take the time
constant of the circuit
to be 3.12 seconds.
So if the resistor has
a current of 420 mA
and a voltage of 12.0
V when the switch is
closed, calculate the
capacitance of the
capacitor.
Chapter 18 Solutions
COLLEGE PHYSICS
Ch. 18 - Prob. 1QAPCh. 18 - Prob. 2QAPCh. 18 - Prob. 3QAPCh. 18 - Prob. 4QAPCh. 18 - Prob. 5QAPCh. 18 - Prob. 6QAPCh. 18 - Prob. 7QAPCh. 18 - Prob. 8QAPCh. 18 - Prob. 9QAPCh. 18 - Prob. 10QAP
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