Answer:
there are .1 cm in a mm so you would do 88 times .1 to get 8.8
A. Blocking light waves that vibrate in the plane. (?)
Answer:
The correct option is D
Junction diodes are preferred over point-contact diodes for most purposes.
Explanation:
Point contact diode:
This type of diode is constructed by touching a metallic wire with an N-type semiconductor to form a small area of contact, hence the name point contact diode. The switching speed of these diodes is better than a conventional diodes.
These diodes are not usually preferred due to their low current ratings and poor reliability.
P-N junction diode:
This type of diode is constructed by joining two regions of opposite conductivity N-type and P-type material, a PN-junction is formed which allows the current to flow in one direction only. The conversion of AC current to DC is done by this process called rectification.
A)
The magnitude of the capacitive reactance is given by
where
is the angular frequency
C is the capacitance
While the magnitude of the inductive capacitance is given by
where L is the inductance.
Since we want the two reactances to be equal, we have
So we find
B) 7449 rad/s
In this case, we have
is the inductance
is the capacitance
Therefore, substituting in the formula for the angular frequency, we find
C)
Now we can us the formulas of the reactances written in part A). We have:
- Capacitive reactance:
- Inductive reactance: