625 inductors and inductance
What is the inductive reactance in a circuit with a .5 H inductor in a circuit supplied by 110 V 60 Hz power?
2pie x 60 x .5 = 188.5
If the voltage drop across in a doctor exceeds_____Then there is an open
5%
What is the inductive reactants in a circuit with a .012 Henry and Dr. in a circuit supplied by 32 V DC power
6.28x 0x .012= 0
If current flows from left to right in a straight wire, and looking into the right end of the wire, the current magnetic rings will rotate
Clock wise
And induced voltage that opposes the applied voltage is called
Counter electromotive force
For internally shorted inductor windings, you should look for
Discoloration overheating
When power is remove from motor field or breaks, the stored energy needs to be
Dissipated
The Silla annoyed confines all that's magnetic lines of flux within the core
False
When testing AC solenoids, the core must be removed
False
The unit of measurement for inductance is called the
Henry
The result of combining resistance in reactants in a circuit is called
Impedance
If the number of turns is increased in a coil, then the inductance will
Increase
As frequency increases, then inductive reactance
Increases
If the inductance in a circuit increases, then the inductive reactance
Increases
The unit of measurement for inductance is represented by the letter
L
One can tell the direction of magnetic field rotation by using the
Left hand rule
When using an ohm meter to measure between the windings Ankor, a reading above_____Is an indication the inductor is good
One mega Ohm
When using a Megger to measure between the windings in the core, a reading above_____Is in in dictation the inductor is good
One megaohm
The ease with which material passes magnetic lines of flux is termed
Perm ability
When using a Megger, the inductor must be_____From the circuit
Removed
When a coil of wire cannot increase its magnetic flux with increases in current, it is said to have reached____
Saturation
One________ _________Is the measure of time it takes for current in in a doctor to reach 63.2% of its final value
Time constant
Not affect can't be reduced by adding and a doctor at the AC input selection of a solid-state drive
True
The greater the inductance in the DC break circuit, the greater the time delay when denergizing the brake
True
