When plants are capable of blooming but incapable of producing fruit, it is likely that the flowers of the species are ____________________
Fill in the blank(s) with correct word
sterile
You might also like to view...
Why is security an issue in an AP?
What will be an ideal response?
Mechanical and physical seed dormancy are both caused by the seed covering being impervious to water
Indicate whether the statement is true or false
Many central system chillers use water cooled condensers because
A) water cooled chillers take up less space inside the building than air cooled chillers B) air cooled condensers contribute more to global warming C) water cooled condensers require less maintenance than air cooled condensers D) the compressor can be located most anywhere inside the building
Refer to Problem 9.44. Assume the diodes have a rated peak reverse voltage of 10 V and:
vline = 156 cos(377t) V
n = 0.04231 Vr = 0.2 V
|io|avg = 2.5 mA |vo|avg = 5.1 V
a. Determine the actual peak reverse voltage across the diodes.
b. Explain why these diodes are or are not suitable for the specifications given.
Problem 9.44
In the bridge rectifier of the power supply shown in Figure P9.44 the silicon diodes are 1N4001 with a rated peak reverse voltage of 50 V.
vline = 170 cos(377t) V
n = 0.2941 C = 700 ?F
Ro = 2.5 k?
a. Determine the actual peak reverse voltage across each diode.
b. Are these diodes suitable for the specifications given? Explain.
