Concept explainers
(a)
The time interval elapsed before the current reaches
(a)
Answer to Problem 31P
The time interval elapsed before the current reaches
Explanation of Solution
Write the expression to obtain the time taken when current reaches
Here, current in the circuit is
Conclusion:
Substitute
Further solve the above equation.
Therefore, the time interval elapsed before the current reaches
(b)
The current in the inductor
(b)
Answer to Problem 31P
The current in the inductor
Explanation of Solution
Write the expression to obtain the current in the inductor
Here, current in the circuit is
Conclusion:
Substitute
Therefore, the current in the inductor
(c)
The time interval elapsed before the current in the inductor reaches
(c)
Answer to Problem 31P
The time interval elapsed before the current in the inductor reaches
Explanation of Solution
Write the expression to obtain the time taken when current reaches
Here, current in the circuit is
Conclusion:
Substitute
Further solve the above equation.
Therefore, the time interval elapsed before the current reaches
Want to see more full solutions like this?
Chapter 32 Solutions
Physics for Scientists and Engineers With Modern Physics
- Show that Equation 32.28 in the text Ls Kirchhoffs loop rule as applied to the circuit in Figure P32.56 with the switch thrown to position b.arrow_forwardConsider the circuit in Figure P32.18, taking = 6.00 V, L = 8.00 mH, and R = 4.00 . (a) What is the inductive time constant of the circuit? (b) Calculate the current in the circuit 250 s after the switch is closed. (c) What is the value of the final steady-state current? (d) After what time interval does the current reach 80.0% of its maximum value?arrow_forwardA generator connected to the wheel or hub of a bicycle can be used to power lights or small electronic devices. A typical bicycle generator supplies 6.00 V when the wheels rotate at = 20.0 rad/s. (a) If the generator's magnetic field has magnitude B = 0.600 T with N = 100 turns, find the loop area A. (b) Find the time interval between the maximum emf of +6.00 V and the minimum emf of 6.00 V.arrow_forward
- Each of the three situations in Figure P32.68 shows a resistor in a circuit in which currents are induced. Using Lenzs law, determine whether the current in each situation is from a to b or from b to a. a. If the current I in the wire in Figure P32.68A is increased from zero to I, what is the direction of the current induced across the resistor R? b. The switch in Figure P32.68B is initially closed and is thrown open at t = 0. What is the direction of the current induced across the resistor R immediately afterward? c. A bar magnet is brought close to the circuit shown in Figure P32.68C. What is the direction of the current induced across the resistor R?arrow_forwardA coil with a self-inductance of 3.0 H and a resistance of 100 2 carries a steady current of 2.0 A. (a) What is the energy stored in the magnetic field of the coil? (b) What is the energy per second dissipated in the resistance of the coil?arrow_forward
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning