Option 1: Flux
Option 2: Torque
Option 3: Current
Option 4: Resistance
Correct Option: 1
Explanation
From basic speed relation N ∝ Eb/Ï•. At constant supply, Eb almost constant, so N ∝ 1/Ï•. Reduction in flux causes increase in speed.
Option 1: Flux
Option 2: Torque
Option 3: Current
Option 4: Resistance
Correct Option: 1
From basic speed relation N ∝ Eb/Ï•. At constant supply, Eb almost constant, so N ∝ 1/Ï•. Reduction in flux causes increase in speed.