Physics Physics Practice Problems Solutions Library

# LR Circuits Solutions Library

Access 19 LR Circuits video and text solutions to help you complete your homework. Need to revisit the concept? Watch our LR Circuits learn videos.

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19 solutions

LR Circuits

#### Q. In the circuit, switch S is opened at t = 0 after having been closed for a long time,(a) How much energy is stored in the inductor t = 0?(b) What i...

Solved • Feb 10, 2021

LR Circuits

#### Q. To understand the mathematics of current decay in an L-R circuit.A DC voltage source is connected to a resistor of resistance R and an inductor wit...

Solved • Feb 3, 2021

LR Circuits

#### Q. Consider the LR circuit shown belowa. What is the current through the resistor immediately after the switch closes?b. What is the battery current t...

Solved • Jul 20, 2020

LR Circuits

#### Q. An RL circuit is shown on the right. L = 2.2 J, R = 258 Ω, ε = 4.5 VSwitch A is closed at t = 0. After a long time, when the current reaches its st...

Solved • Jul 17, 2020

LR Circuits

#### Q. An RL circuit is shown on the right. L = 2.2 J, R = 258 Ω, ε = 4.5 VSwitch A is closed at t = 0. Part (a) After a long time, when the current reach...

Solved • Jul 17, 2020

LR Circuits

#### Q. An RL circuit is shown on the right. L = 2.2 J, R = 258 Ω, ε = 4.5 V.  Switch A is closed at t = 0.(a) Calculate the numerical value of I at t = 0....

Solved • Jul 17, 2020

LR Circuits

#### Q. An RL circuit is shown on the right. L = 2.2 J, R = 258 Ω, ε = 4.5 VPart (a) Switch A is closed at t = 0. Express the current I in the circuit as a...

Solved • Jul 15, 2020

LR Circuits

#### Q. The switch in the figure has been open for a long time. It is closed at t = 0 s.(a) What is the current through the 20 ohm resistor after the switc...

Solved • Jun 30, 2020

LR Circuits

#### Q. In the circuit shown in the figure below, switch S is closed at a time t = 0.Find the reading of each ammeter after a long period of time has passe...

Solved • Jun 12, 2020

LR Circuits

#### Q. The switch in the figure has been open for a long time. It is closed at t = 0 s.What is the current through the 20 ohm resistor immediately after t...

Solved • Jun 2, 2020

LR Circuits

#### Q. In the circuit shown in the figure below, switch S is closed at a time t = 0.Find the reading of each ammeter just after the switch is closed.

Solved • Jun 2, 2020

LR Circuits

#### Q. Consider an L-R circuit as shown in the figure. The battery provides 12.0 V of voltage has resistance R=150Ω. The switch is initially open as shown...

Solved • May 21, 2020

LR Circuits

#### Q. Which of the following statements about inductors are correct?A) When an inductor and a resistor are connected in series with a DC battery, the cur...

Solved • Apr 10, 2020

LR Circuits

#### Q. The switch in the figure has been open for a long time. It is closed at t = 0s.(a) What is the current through the battery immediately after the sw...

Solved • Apr 7, 2020

LR Circuits

#### Q. In the following circuit, the battery has a voltage of 40 V. At some instant in time, the voltage across the resistor is found to be 10 V. At this ...

Solved • May 10, 2017

LR Circuits

#### Q. Consider the circuit shown in the sketch. Initially the switch is open and no currents flow.  After the switch has been closed a long time, it is ...

Solved • Jan 26, 2017

LR Circuits

#### Q. Consider the circuit shown in the sketch. The switch has been closed for a long time and then it is opened. Just after the switch is opened, the cu...

Solved • Jan 24, 2017

LR Circuits

#### Q. Consider the circuit shown in the sketch. The battery emf is 48.0 V,  R1 = 16.0 Ω, and R2 = 6.00 Ω. Initially no currents are flowing. Then the swi...

Solved • Jan 23, 2017

LR Circuits

#### Q. An inductor with an inductance of L = 6.0 H and a resistor with resistance R = 10 Ω are connected in series to the terminals of a battery with EMF ...

Solved • Jan 11, 2017