In what form is the energy stored in a charged capacitor?

Which of the following are appropriate units for resistance?

In a step-down transformer, which is larger ?

Which of the following are appropriate units for capacitance?

In a circuit consisting of a battery in parallel with two identical parallel resistors, how do the currents through the two resistors compare?

How does the total capacitance of two capacitors arranged together in parallel compare to the individual capacitances of each?

True or False: The ratio of visible light produced to power consumed is more for LEDs than for incandescent light bulbs.

Which of the following statements is certainly true about two capacitors that have been charged in parallel?

Which of these has no P-N junctions?

Which of these devices has a rectifying metal-semiconductor junction?

How does the total capacitance of two capacitors arranged together in series compare to the individual capacitances of each?