Question

1. With reference to the relay schematic diagram in Figure 7-37 (shown in next page), a. State the status of each light after each of the following sequential events. Write "on" or "off" in the table at right - example answer is not necessarily correct, but you answer must be in the same format as shown! PL1 PL2 e.g. ans.: PL1 is off PL2 is off PL3 PL3 is on PL4 PL4 is on i. i. Power is first applied and switch S1 is open. ii. ii. Switch S1 has just closed. iii. iii. Switch S1 has been closed for 5 s. iv. iv. Switch S1 has just opened. v. v. Switch S1 has been opened for 5 s.

          1. With reference to the relay schematic diagram in Figure 7-37 (shown in next page),
a. State the status of each light after each of the
following sequential events. Write "on" or "off" in
the table at right - example answer is not
necessarily correct, but you answer must be in the
same format as shown!
PL1
PL2
e.g. ans.:
PL1 is off PL2 is off
PL3
PL3 is on
PL4
PL4 is on
i.
i. Power is first applied and switch S1 is open.
ii.
ii. Switch S1 has just closed.
iii.
iii. Switch S1 has been closed for 5 s.
iv.
iv. Switch S1 has just opened.
v.
v. Switch S1 has been opened for 5 s.

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1. With reference to the relay schematic diagram in Figure 7-37 (shown in next page),
a. State the status of each light after each of the
following sequential events. Write "on" or "off" in
the table at right - example answer is not
necessarily correct, but you answer must be in the
same format as shown!
PL1
PL2
e.g. ans.:
PL1 is off PL2 is off
PL3
PL3 is on
PL4
PL4 is on
i.
i. Power is first applied and switch S1 is open.
ii.
ii. Switch S1 has just closed.
iii.
iii. Switch S1 has been closed for 5 s.
iv.
iv. Switch S1 has just opened.
v.
v. Switch S1 has been opened for 5 s.

Added by Jillian P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Prem Bijarniya

Step 1

Let's assume a typical scenario where PL1 and PL2 are controlled directly by the switch S1, and PL3 and PL4 are controlled by relays that are in turn controlled by the switch S1 and possibly time-delay functions or additional conditions. ### Show more…

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With reference to the relay schematic diagram in Figure 7-37 (shown on the next page), state the status of each light after each of the following sequential events. Write "on" or "off" in the table at the right -- example answer is not necessarily correct, but your answer must be in the same format as shown! i. Power is first applied and switch S1 is open. ii. Switch S1 has just closed. iii. Switch S1 has been closed for 5 s. iv. Switch S1 has just opened. v. Switch S1 has been opened for 5 s. PL1: PL2: PL3: PL4:

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