True/False?! 1. An Amperian loop which is always perpendicular to magnetic field

Question

True/False?!

1. An Amperian loop which is always perpendicular to magnetic field lines will never encircle a current.
2.The negative sign in Faraday's Law (Lenz's Law) implies that the induced EMF is in opposition to any changes in magentic flux.
3.The magnetic flux passing through a flat coil is measured by counting the number of field lines passing through the inside of the coil only.
4.The magnetic field at a radial distance R from a current element i dl is a maximum when the current element direction is parallel to the radial line.
5. The current induced in a copper wire coil by a changing magnetic field is independent of the number of turns in the coil.

Explanation / Answer

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