Select your language

Suggested languages for you:
Log In Start studying!
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q. 36

Expert-verified
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 871

Answers without the blur.

Just sign up for free and you're in.

Illustration

Short Answer

The switch in FIGURE has been open for a long time. It is closed at .

a. What is the current through the battery immediately after the switch is closed

b. What is the current through the battery after the switch has been closed a long time

a. Immediately after the switch is closed, current flows through the battery.

b. Once the switch has been closed for a long period, the current through the battery is .

See the step by step solution

Step by Step Solution

Step 1: Calculation for after the switch is closed (part a)

(a).

For circuit,

The inductor has zero current when the switch is instantaneously closed at time .

As a result, the current flows through the middle branch, which has aresistance.

So, to get the current via the battery, we apply Ohm's law.

Step 2: Calculation for after the switch has been closed a long time (part b) 

(b).

The current goes through the inductor after a lengthy period.

The comparable resistance is supplied by the two resistorsand when they are linked in parallel.

To get the current via the battery, we apply Ohm's law.

Recommended explanations on Physics Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.