17) If the primary coil of a transformer contains more loops than the secondary

Question

17) If the primary coil of a transformer contains more loops than the secondary coil then it is a A) step-up transformer B) step-down transformer 18) Which one of the following lists gives the correct order of the electromagnetic spectrum f high frequencies? A) radio waves, infrared, microwaves, ultraviolet, visible, x-rays, gamma rays B) radio waves, ultraviolet, x-rays, microwaves, infrared, visible, gamma rays C) radio waves, microwaves, visible, x-rays, infrared, ultraviolet, gamma rays D) radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays E) radio waves, infrared, x-rays, microwaves, ultraviolet, visible, gamma rays

Explanation / Answer

17 Ans B) step down transformer

18 Ans D) radio waves, microwaves,infrared,visible, ultravoilet, x rays, gama rays

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