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A portable radio has a built in transf...

A portable radio has a built in transformer so that it can work form the mains instead of batteries. Is this a step - up or step down transformer ?

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The correct Answer is:
N/a
Step-down transformer (which reduces the voltage)
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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
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  15. What is the usual colour of the insulation of : (a) live wire, (b) neu...

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  17. Give two reasons why different electrical appliances in a domestic cir...

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  18. How should the electric lamps in a building be connected so that the s...

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  19. Fill in the following blanks with suitable words : (a) A fuse should...

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