In the above circuit, the switch is open for a long time. i)The switch closes for 50 us. What is the current through the inductor? Also, what is the voltage at the output with respect to ground just before the switch open?
ii) The switch closes. What is the maximum current the inductor will see?

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

magnets not strong enough

explanation: