1.What do we calculate if we integrate length element ds around a full circle?
a)The diameter of the circle
b)The radius of the circle
c)The circumference of the circle
d)The area of the circle
2.Which currents are included in a calculation of Ampere’s law?
a)Only currents that are inside the loop of integration
b)Only currents that are outside the loop of integration
c)Only currents that are perpendicular to the plane of the loop of integration
d)Only currents that are parallel to the plane of the loop of integration
3.Which describes the magnetic field at a point inside a long wire that carries current uniformly across its circular cross-sectional area?
a)The field is directed radially outward
b)The field is directed radially inward
c)The field is tangent to a circle through the point and concentric with the wire.And why
1.What do we calculate if we integrate length element ds around a full circle?
a)The diameter of the circle
b)The radius of the circle
c)The circumference of the circle
d)The area of the circle
2.Which currents are included in a calculation of Ampere’s law?
a)Only currents that are inside the loop of integration
b)Only currents that are outside the loop of integration
c)Only currents that are perpendicular to the plane of the loop of integration
d)Only currents that are parallel to the plane of the loop of integration
3.Which describes the magnetic field at a point inside a long wire that carries current uniformly across its circular cross-sectional area?
a)The field is directed radially outward
b)The field is directed radially inward
c)The field is tangent to a circle through the point and concentric with the wire.And why
