Three coil rows keep flux change and time fixed while turn count multiplies linkage and voltage.
More turns multiply linkage and induced voltage. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
One turn links six webers
With 1 turn count, flux change 6 Wb becomes linkage 6 Wb and voltage 2 V over 3 s.
V=(1×6)/3=2
Two turns double the linkage
With 2 turn count, flux change 6 Wb becomes linkage 12 Wb and voltage 4 V over 3 s.
V=(2×6)/3=4
Three turns triple the voltage
With 3 turn count, flux change 6 Wb becomes linkage 18 Wb and voltage 6 V over 3 s.