Torque equation of IM

What is the torque equation of an induction motor?

• A) T = (3 V^2 R2)/(2 s (R1 + R2)^2)

• B) T = (3 V^2 R2)/(2 s (R1 + R2))

• C) T = (3 V^2 R2)/(2 s (R1 - R2)^2)

• D) T = (3 V^2 R2)/(2 s (R1 - R2))

What is the effect of increasing the supply voltage on the torque of an induction motor?

• A) Increases torque

• B) Decreases torque

• C) Has no effect on torque

• D) Can increase or decrease torque depending on the load

What is the effect of increasing the rotor resistance on the torque of an induction motor?

• A) Increases torque

• B) Decreases torque

• C) Has no effect on torque

• D) Can increase or decrease torque depending on the load

What is the effect of increasing the slip on the torque of an induction motor?

• A) Increases torque

• B) Decreases torque

• C) Has no effect on torque

• D) Can increase or decrease torque depending on the load

What is the effect of increasing the number of rotor poles on the torque of an induction motor?

• A) Increases torque

• B) Decreases torque

• C) Has no effect on torque

• D) Can increase or decrease torque depending on the load

Which of the following is the most common type of induction motor?

• a. Synchronous motor

• b. DC motor

• c. Single-phase motor

• d. Three-phase motor

In an induction motor, the stator winding is connected to

• a. AC supply

• b. DC supply

• c. Batteries

• d. Solar panels

Which of the following is not a method to control the speed of an induction motor?

• a. Changing the number of poles

• b. Changing the frequency of the supply voltage

• c. Using a variable frequency drive

• d. Changing the number of stator windings

Which of the following is the most common method to start an induction motor?

• a. Star-delta starter

• b. Auto transformer starter

• c. Direct-on-line starter

• d. Soft starter

The maximum torque of an induction motor occurs at

• a. Synchronous speed

• b. No-load speed

• c. Starting speed

• d. Maximum speed