Exercise: Alternating Current Vs Direct Current

Questions for: Alternating Current Vs Direct Current

What is the name of a device that converts sound waves to electrical waves?
A:
an amplifier
B:
an antenna
C:
a filter
D:
a microphone
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Which control should be moved to display more cycles of a signal on an oscilloscope?
A:
horizontal position to left or right
B:
volts/cm to a smaller number
C:
vertical position to top or bottom
D:
time/cm to a higher setting
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
What is the name of a device used to directly measure the frequency of a periodic wave?
A:
oscilloscope
B:
frequency meter or counter
C:
audio frequency generator
D:
radio frequency generator
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A triangle wave consists of repeating:
A:
positive ramps only
B:
negative ramps only
C:
positive and negative ramps of equal value
D:
positive and negative ramps of unequal value
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A rectangular wave that has a duty cycle of 50 percent could be called a:
A:
c wave
B:
sawtooth wave
C:
square wave
D:
triangle wave
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz