The diagram in Fig. 9.27 shows a three-pin socket marked as 1, 2 and 3.

(a) Identify and write live (L), neutral (N) and earth (E) against the correct number.

(b) To which part of the appliance is the terminal 1 connected?

(c) To which wire joined to 2 or 3, is the fuse connected and why?

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Solution

(a) 1 – Earth, 2 – Neutral, 3 – Live

(b) Terminal 1 is connected to the outer metallic case of the appliance.

(c) The fuse is connected to live wire joined to 3 so that in case of the excessive flow of current fuse melts first and breaks down the circuit to protect appliances.

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The diagram in Fig. 9.27 shows a three-pin socket marked as 1, 2 and 3. (a) Identify and write live (L), neutral (N) and earth (E) against the correct number. (b) To which part of the appliance is the terminal 1 connected? (c) To which wire joined to 2 or 3, is the fuse connected and why?

(a) 1 – Earth, 2 – Neutral, 3 – Live (b) Terminal 1 is connected to the outer metallic case of the appliance. (c) The fuse is connected to live wire joined to 3 so that in case of the excessive flow of current fuse melts first and breaks down the circuit to protect appliances.

The diagram in Fig. 9.27 shows a three-pin socket marked as 1, 2 and 3.

(a) Identify and write live (L), neutral (N) and earth (E) against the correct number.

(b) To which part of the appliance is the terminal 1 connected?

(c) To which wire joined to 2 or 3, is the fuse connected and why?

(a) 1 – Earth, 2 – Neutral, 3 – Live

(b) Terminal 1 is connected to the outer metallic case of the appliance.

(c) The fuse is connected to live wire joined to 3 so that in case of the excessive flow of current fuse melts first and breaks down the circuit to protect appliances.