Answer the following statement(s) true (T) or false (F)

1. When used as a pulse timer, the 555 timer is connected differently than the 555 timer that is used as an oscillator.

2. In a 555 circuit used as a pulse timer, the capacitor is charged by the Vcc and not from a feed-back circuit from the output of the timer.



3. In the accompanying figure, transistor Q2 is used to turn relay coil K1 on or off.

4. In the accompanying figure, once capacitor C1 has been charged, it is prevented from discharging through resisters R3 and R4.

5. In the accompanying figure, pin #2 is connected to pin #6, which is at ground potential.


1. True
2. False
3. False
4. False
5. True

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