A rig's magnets are swapped for a stronger pair. Nothing else changes. What happens to the force on the wire?
Rigs J, K and L use the same wire and the same current. Only the magnets differ: J's are weak, K's are strong, L's are middling. Which wire feels the largest force?
Only one factor differs across J, K and L: the field strength.
The stronger the field, the bigger the force.
K's magnets are the strongest, so K's wire feels the largest force. J's are the weakest, so J's wire feels the smallest.
The ranking, largest force first: K, then L, then J.
Rigs P, Q and R are identical except for current: P carries 1 A, Q carries 3 A, R carries 5 A. Rank the wires by force, largest first.
Only the current differs.
More current means a bigger force.
R carries the most current; P carries the least.
R, then Q, then P.
Rigs X, Y and Z are identical except for the wire in the field: X has 3 cm, Y has 9 cm, Z has 6 cm. Rank the forces, largest first.
Only the length of wire inside the field differs.
A longer length inside the field means a bigger force.
Y has the most wire in the field; X has the least.
Y, then Z, then X.
Three rigs differ only in current: 2 A, 4 A and 6 A. Which wire feels the largest force?
Three rigs differ only in their magnets: weak, middling and strong. Which wire feels the smallest force?
Three rigs differ only in wire crossing the field: 3 cm, 6 cm and 9 cm. Which wire feels the largest force?
Three rigs differ only in current: 1 A, 5 A and 3 A. Rank the wires by force, largest first.
Three rigs differ only in their magnets: weak, strong and middling. Rank the forces, largest first.
Three rigs differ only in wire crossing the field: 4 cm, 12 cm and 8 cm. Rank the forces, largest first.