The figure below shows a circuit consisting of a 18.0 V battery in series with an inductor with inductance L = 11.5 H, a resistor with resistance R = 6.50 Q, and a switch, initially open. (a) After the switch is closed, what is the maximum current (in A) that will flow through the circuit? A (b) What is the time constant (in s) of the circuit? (c) After the switch is closed, how much time (in s) does it take for the current to reach 95.0% of its maximum value?

An electromagnet can be modeled as an inductor in series with a resistor. Consider a large electromagnet of inductance L = 12.5 H and resistance R = 7.50 connected to a 18.0-V battery and switch as in the figure shown below. After the switch is closed, find the following. S E + 'I R (a) the maximum current carried by the electromagnet A (b) the time constant of the circuit S (c) the time it takes the current to reach 95.0% of its maximum value S

A 12.0-V battery is connected into a series circuit containing a 20.0-2 resistor and a 1.70-H inductor. (a) In what time interval will the current reach 50.0% of its final value? S (b) In what time interval will the current reach 90.0% of its final value? S

A series circuit consists of a resistor with R = 20 02, an inductor with L = 1 H, a capacitor with C = 0.01 F, and a 18-volt battery. If the initial charge and current are initially both 0, find the charge and current at time t. charge current Q(t) = I(t)= 18te 10t X

A loop of wire has a self-inductance of 5.5 mH.  You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?

An electromagnet can be modeled as an inductor in series with a resistor. Consider a large electromagnet of inductance L = 14.5 H and resistance R = 8.00 n connected to a 18.0-V battery and switch as in the figure shown below. After the switch is closed, find the following. R (a) the maximum current carried by the electromagnet (b) the time constant of the circuit (c) the time it takes the current to reach 95.0% of its maximum value

A 24-V battery is connected in series with a resistor and an inductor, with R = 6.8 Ω and L = 5.4 H, respectively. (a) Find the energy stored in the inductor when the current reaches its maximum value. J(b) Find the energy stored in the inductor one time constant after the switch is closed. J

A 12.0 V battery is connected into a series circuit containing a 20.0 resistor and a 1.50 H inductor. (a) In what time interval (in s) will the current reach 50.0% of its final value? S (b) In what time interval (in s) will the current reach 90.0% of its final value? S What If? After a very long time, using a switch like that shown in the figure below, the battery is removed and the inductor is connected directly across the resistor. R Są ob ก ε ele (c) In what time interval (in s) will the current decrease to 50.0% of its initial value? S (d) In what time interval (in s) will the current decrease to 10.0% of its initial value? S

A battery providing emf V is connected in series to a resistor R and an inductor L, and left until the current reaches a constant value. (a) What is the energy stored in the inductor in terms of V, R and L? Then, at t = 0, the battery is suddenly removed, so that only the inductor and resistor are left connected to each other in a closed circuit. (b) Derive an expression for the energy stored in the inductor in the new circuit without the battery. Sketch your expression as a function of time. (c) How long does it take for the energy stored in the inductor to decay to 1/9 of the initial value that you found in part (a)?

Consider a 22.5 mH inductor that has a resistance of 4.1 Ω.  Part (a)  What is the time constant, τ, of the inductor, in seconds?   Part (b)  If the inductor is connected to a 12.0 V battery, what is the current, I, in amperes, after 10.5 ms?