question_answer

Choose the incorrect statement.

i. Fleming's right-hand rule is a simple rule to know the direction of induced current.

ii. The right-hand thumb rule is used to find the direction of magnetic fields due to current carrying conductors.

iii. The difference between the direct and alternating currents is that the direct current always flows in one direction, whereas the alternating current reverses its direction periodically.

iv. In India, the AC changes direction after every \[\frac{1}{15}\] second.

A) i and ii

B) ii and iii

C) i, ii and iii

D) only iv

E) None of these