EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 30, Problem 6Q
(a)
To determine
The emf of the battery affect the time needed for the
(b)
To determine
The emf of the battery affect the time needed for the
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The current in the RL circuit shown below reaches one-fourth its maximum value in 2.75 ms after the switch s, is thrown.
R
(a) Determine the time constant of the circuit (in ms).
ms
(b) Determine the resistance of the circuit (in 0) if L = 200 mH.
wR
-27/W
b. The power (P) supplied to an electric circuit is given by P = 2 dt. If
%3D
i = 63 * I sin(wt), I is the current, w is the angular frequency and R is the
resistance, evaluate P.
How long would it take, following the removal of the battery, for the potential difference across the resistor in an RL circuit (with L = 2.00 H, R = 3.00 ohm) to decay to 10.0% of its initial value?
Chapter 30 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 30 - Prob. 1QCh. 30 - Prob. 2QCh. 30 - Prob. 3QCh. 30 - Prob. 4QCh. 30 - If you are given a fixed length of wire, how would...Ch. 30 - Prob. 6QCh. 30 - Prob. 7QCh. 30 - Prob. 8QCh. 30 - What keeps an LC circuit oscillating even after...Ch. 30 - In an ac LRC circuit, if XL XC, the circuit is...
Ch. 30 - Prob. 13QCh. 30 - Under what conditions is the impedance in an LRC...Ch. 30 - Is it possible for the instantaneous power output...Ch. 30 - In an ac LRC circuit, does the power factor, cos,...Ch. 30 - Describe briefly how the frequency of the source...Ch. 30 - Prob. 18QCh. 30 - In an LRC circuit, the current and the voltage in...Ch. 30 - Compare the oscillations or an LRC circuit to the...Ch. 30 - Prob. 4PCh. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - (II) (a) What is the rms current in a series LR...Ch. 30 - (I) What is the resonant frequency of the LRC...Ch. 30 - At time t = 0, the switch in the circuit shown in...Ch. 30 - Prob. 70GPCh. 30 - Show that the fraction of electromagnetic energy...
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- A circuit conducting loop lies in the :xy-plane as shown in Figure .The loop has a radius of 0.2m and resistance R = 4 Q. If B 40 sin 104 t az mWb/m2, find the currrent.arrow_forward(p) It is necessary to find the value of R from a switched circuit. The function becomes R f(R)= e-RlhL, cos LC ;Assunme charge must be 2L dissipated to 1% of its original values = 0.01 in time t 0.05 sec with L= 5H and C = 10- F. Use false position method.arrow_forwardAn alternating voltage given by V = 70 sin 100 nt is connected across a pure resistor of 25Q. Find %3D (i) the frequency of the source. (ii) the rms current through the resistor.arrow_forward
- 91 SSM In the circuit of Fig. 30-76, R = 20 kn, R2 = 20 N, L = 50 mH, and the ideal battery has & = 40 V. Switch S has been open for a long oll L. R R2 time when it is closed at time t = 0. Just after the switch is closed, what シー are (a) the current ibat through the battery and (b) the rate dipal dt? At t = 3.0 us, what are (c) ibat and (d) dipaldt? A long time later, what are (e) ibat and (f) dipal dr? Figure 30-76 Problem 91.arrow_forwardThe current in the RL circuit shown below reaches one-fifth its maximum value in 2.00 ms after the switch S1 is thrown. (a)Determine the time constant of the circuit (in ms). (b)Determine the resistance of the circuit (in Ω) if L = 200 mH.arrow_forwardCalculate the resistance in an RL circuit in which L= 0.04 H and the current increases to 90% of its final value in 3.00 ms.arrow_forward
- Does the time required for the current in an RL circuit to reach any fraction of its steady-state value depend on the emf of the battery?arrow_forwardIn an oscillating RLC circuit, R = 7.0 L. = 10 mH. And C = 3.0 F. Initially, the capacitor has a charge of 8.0 C and the current is zero. Calculate the charge on the capacitor (a) five cycles later and (b) 50 cycles later.arrow_forwardIn Figure 33.9A (page 1052), the switch is closed at a at t = 0. Find an expression for the power dissipated by the resistor as a function of time, and sketch your result. Is the power lost greater as soon as the switch is closed or a long time after it has been closed? Does your answer make sense?arrow_forward
- What resistance R must be connected in series with a 200-mH inductor of the resulting RLC oscillating circuit is to decay to 50% of its initial value of charge in 50 cycles? To 0.10% of its initial value in 50 cycles?arrow_forwardCalculate the resistance in an RL circuit in which L = 2.50 H and the current increases to 90.0% of its final value in 3.00 s.arrow_forward**.26 o For the wire arrangement in Fig. 30-49, a = 12.0 cm and b 16.0 cm. The current in the long straight wire is i = 4.502 – 10.01, where i is in amperes and t is in sec- onds. (a) Find the emf in the square loop at t= 3.00 s. (b) What is the %3! Figure 30-49 Problem 26. direction of the induced current in the loop?arrow_forward
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