Hi @moazzamushtaq, thank you for participating in the Industrial Electrical Homework. We have assessed your Homework post , and the below captures our assessments.

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A. You have made the series board as well as drawn the circuit. For electrical work, the first step is to draw a nice and clear circuit. Your series board has been created correctly.

B. You checked the series board with SMD and oven. Protects home appliances from damage with series boards. Series boards are very useful for low ampere loads.

C. I am confused about the result of you checking the cable with the series board. As I can see in the picture the lights did not shine brightly. Since checked with short cable the light will give bright light.

You can check the home appliance perfectly with the series board. Series boards are very useful for eliminating shock circuits in your house cables. I was not satisfied with the results of checking the cable with your series board. Good luck to you.