A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m / s, at right angles to the horizontal component of the earth’s magnetic field, 0.30 × 10−4 Wb / m2.
(a) What is the direction of the emf?
(b) Which end of the wire is at the higher electrical potential?
Ok, I have found the direction of EMF to be from west to east.
Now,Current flows from a region of HIGHER potential to a region of LOWER potential which is just the opposite to the flow of electrons.
Now, as in (a), the direction of induced emf which is absolutely same as direction of induced current is from west to east, shouldn't WEST be at a higher potential?
But the answer given is: EASTERN END.
Can you help me with this one?
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1 Answers
1if the direction of emf is from west to east then obviously eastern end is at higher potential.
the answer is in this statement itself.