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Terms in this set (51)
Refer to figure 1. If the load
resistance R2 is reduced by
half what happens what
happens to zener diode?
Zener current will decrease
Refer to figure 1. The zener
diode is designed to
breakdown at 6VDC what is
the voltage drop across R1
with a constant DC supply of 4v
10VDC
An elevators motor rotates 30 rpm
at 1200 rpm at contract
speed and is geard at a ratio
of 40:1. If the motor turns 40
rpm the sheave turns 1 rpm.
What is the actual speed of
the drive sheave in rpms?
1
, Refer to figure 2. For the
comparator circuit shown,
what will happen to the
output of the noninverting
input goes more positive The output will go to zero
than the inverting input?
Refer to figure 3. For the
inverting op amp shown,
what is the output voltage?
-20 mv
Which term defines the limit Saturation
of magnetic strength around
an inductor even though the
current through the coil
increases
Which of the following Voltage is removed from anode to cathode
describes how an SCR is
turned OFF?
On the fourteen pin DIP IC
shown in figure 4 what is
the location of pin 14
Top right
A brake coil has an 1507 ohms
inductance of 4 henries. If
the coil was placed into a
circuit with an operating
frequency of 60hz the coil
would have a resistance of:
2
Terms in this set (51)
Refer to figure 1. If the load
resistance R2 is reduced by
half what happens what
happens to zener diode?
Zener current will decrease
Refer to figure 1. The zener
diode is designed to
breakdown at 6VDC what is
the voltage drop across R1
with a constant DC supply of 4v
10VDC
An elevators motor rotates 30 rpm
at 1200 rpm at contract
speed and is geard at a ratio
of 40:1. If the motor turns 40
rpm the sheave turns 1 rpm.
What is the actual speed of
the drive sheave in rpms?
1
, Refer to figure 2. For the
comparator circuit shown,
what will happen to the
output of the noninverting
input goes more positive The output will go to zero
than the inverting input?
Refer to figure 3. For the
inverting op amp shown,
what is the output voltage?
-20 mv
Which term defines the limit Saturation
of magnetic strength around
an inductor even though the
current through the coil
increases
Which of the following Voltage is removed from anode to cathode
describes how an SCR is
turned OFF?
On the fourteen pin DIP IC
shown in figure 4 what is
the location of pin 14
Top right
A brake coil has an 1507 ohms
inductance of 4 henries. If
the coil was placed into a
circuit with an operating
frequency of 60hz the coil
would have a resistance of:
2
