1.4 Stepper motor b

What happens to the torque of a stepper motor if the step angle is decreased?

• It increases

• It decreases

• It stays the same

• It cannot be determined

If the current in a stepper motor is doubled, what happens to the torque?

• It doubles

• It halves

• It quadruples

• It stays the same

What does T stand for in the torque prediction equation for a stepper motor?

• Time

• Temperature

• Torque

• Tension

Which of the following is the torque prediction equation for a stepper motor?

• T=1/2(I₁² ∆L₁+ I₂² ∆L₂) + I₁ I₂∆M

• T=1/2(I₁² ∆L₁+ I₂² ∆L₂) + I₁ I₂∆ L₁ L₂

• T=1/2(I₁² ∆L₁+ I₂² ∆L₂)

• T=(I₁² ∆L₁+ I₂² ∆L₂) + I₁ I₂∆M

Which is appears when permeable cores are finite?

• Air gap

• Iron core

• Air gap and Iron core

Which is the obtained when current is constant in the circuit?

• F=∆W_M/∆X

• F=∆F/∆X

• F=∆X/∆W_M