dc

Found 13 Results for dc.

Showing 1 to 10.

1. Electric Current
A dry cell supplies direct current, or dc. This is electricity that flows in only one direction.
http://www.fun-home-projects.com/electrical_projects/​electric_current.html

2. How It Began
In 1804, Nicolas dc Saussure published some results of investigations he had made that showed how plants needed mineral substances to achieve satisfactory growth.
http://www.fun-home-projects.com/hobbies/​hydroponics/​how_it_began.html

3. Converting AC To DC
Many modern appliances, while operating on ac, use dc motors or rechargeable dc batteries that require the ac to be converted to dc at some point within the appliance.
http://www.fun-home-projects.com/electrical_projects/​tools/​converting_ac_to_dc.html

4. DC Motors
The simplest electric motors are dc motors, and these find many applications in small household appliances. They are often found in electric toothbrushes and small, portable hair dryers, for example.
http://www.fun-home-projects.com/electrical_projects/​tools/​dc_motors.html

5. AC Motors
AC motors are similar to a dc motor, except that because the current through the rotor is alternating, slip rings are used and no commutator is required.
http://www.fun-home-projects.com/electrical_projects/​tools/​ac_motors.html

6. Universal Motors
Basically, a universal motor is nothing more than a dc motor with a series field. However, the motor has been designed so that when alternating current is applied to the motor, the magnetic fields from the armature and the field windings cause the armature to turn.
http://www.fun-home-projects.com/electrical_projects/​tools/​universal_motors.html

7. Motor Controls
Unlike a rheostat, the variable transformer cannot be used with dc, but it is better than a rheostat in high-power applications.
http://www.fun-home-projects.com/electrical_projects/​tools/​motor_controls.html

8. Solid - State Devices
You have already seen how one such device, a diode, is used to convert ac into dc. There are many other small electronic components which can be used in the control circuitry of appliances and tools.
http://www.fun-home-projects.com/electrical_projects/​tools/​solid_state_devices.html

9. Multivoltage AC / DC Power Supply
The power supply can be used for bench operation of low-voltage ac and dc appliances and control devices. Transformer T may be a Stancor P-8364, which has three 12V secondaries of which one is centertapped.
http://www.fun-home-projects.com/electrical_projects/​tools/​multivoltage_ac_dc_power_supply.html

10. Tvi Filter For Appliances Employing Universal Motors
05 uF paper-dielectric type with a dc breakdown rating of 2000V. The components can be fitted in an outlet box to which a single female ac receptacle is mounted.
http://www.fun-home-projects.com/electrical_projects/​tools/​tvi_filter_for_appliances_employing_universal_motors.html


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