Dark Activated Switch circuit using LDR X1 9v Relay R2 1kQ COM 230v 100W V2 D1 R1 IN4007 50ka LED NO INC 230v AC .V1 -9-12v Q1 2N2222A Dark Sensor LDR Fig(3) Procedure 3-obstruct the light on LDR ,you see the led will be light ,explain the situation. 4-connect the circuit in fig3 which is the same of above plus relay .use a(12v) car lamp. 5- convert the circuit to be sensitive to light 5- What is the difference between the circuit using one transistor and tow transistor ? 11

Dark Activated Switch circuit using LDR X1 9v Relay R2 1kQ COM 230v 100W V2 D1 R1 IN4007 50ka LED NO INC 230v AC .V1 -9-12v Q1 2N2222A Dark Sensor LDR Fig(3) Procedure 3-obstruct the light on LDR ,you see the led will be light ,explain the situation. 4-connect the circuit in fig3 which is the same of above plus relay .use a(12v) car lamp. 5- convert the circuit to be sensitive to light 5- What is the difference between the circuit using one transistor and tow transistor ? 11

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter4: Symbols

Section: Chapter Questions

Problem 12SQ: Referring to the circuit in Figure 412, what circuit component controls the actions of the two CR...

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