Electromagnetic Induction - Result Question 19

19. The variation of EMF with time for four types of generators are shown in the figures. Which amongst them can be called AC?

[NEET Odisha 2019]

(a)

(b)

(c)

(d)

(a) Only(a)

(b) (a) and (d)

(c) (a), (b), (c), (d)

(d) (a) and (b)

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Answer:

Correct Answer: 19. (c)

Solution:

  1. (c) A current which changes its direction periodically is called alternating current.