When a switch is closed, completing an LR series circuit, the time needed for the current to reach one half its maximum value is ____ time constants.
A. 0.250
B. 0.500
C. 0.693
D. 1.00
E. 1.44
Answer: C
You might also like to view...
Relate our magnetic field to the aurorae
What will be an ideal response?
Why are the designs of the Hubble and Chandra Space Telescopes different?
What will be an ideal response?
For a plane to be able to fly clockwise in a horizontal circle as seen from above, in addition to exerting a force downwards on the air
a. it must be increasing its speed. b. it must exert a force on the air that is directed to the plane's left side. c. it must exert a force on the air that is directed to the plane's right side. d. it does not need to exert a force: it must only move the wing flaps out. e. it only needs to deflect the air without exerting any additional force on the air.
What does this infrared photograph of a toaster reveal?
a. The wavelength or frequency of the main infrared radiation emitted depends on temperature. b. Heat flows by conduction. c. Heat flows by convection.