Explain why bulbs in along corridor are not wired in series

​(a) Explain why bulbs in along corridor are not wired in series (2mks)

• High resistance, dim light
• When one goes off, all others go off

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​(b) An electric cooker has an oven rated 2500w, a grill rated 1500w and two plates each of 1000W. This cooker operates directly from 240v supply. What is the costs of operating all the parts at once for 30 minutes if electricity costs sh.10.00 per unit? (3mks)

​(c) Study the figure below

​(i) What name is given to the fitting in the diagram (1mk)

​3 pin plug

​(ii) Identify the parts labeled (2mks)

A

​Neutral wire

B

​Earth wire 

C

​Live wire 

D

​Fuse

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