The correct answer is: A. high inductance and low resistance
The inner cage of a double cage induction motor is made of thin copper bars that are short-circuited at each end. This gives the inner cage a high inductance and low resistance. The outer cage is made of thicker copper bars that are also short-circuited at each end. The outer cage has a lower inductance and higher resistance than the inner cage.
The two cages are arranged so that the inner cage is located closer to the stator than the outer cage. This is because the inner cage has a higher inductance and therefore a higher starting torque. The outer cage provides additional torque at higher speeds.
Double cage induction motors are used in a variety of applications, including fans, pumps, and compressors. They are also used in some electric vehicles.
Here is a brief explanation of each option:
- Option A: high inductance and low resistance. The inner cage of a double cage induction motor has a high inductance and low resistance. This is because the inner cage is made of thin copper bars that are short-circuited at each end. The high inductance of the inner cage causes it to have a high starting torque. The low resistance of the inner cage allows it to run at high speeds.
- Option B: low inductance and high resistance. The outer cage of a double cage induction motor has a low inductance and high resistance. This is because the outer cage is made of thicker copper bars that are also short-circuited at each end. The low inductance of the outer cage allows it to run at high speeds. The high resistance of the outer cage causes it to have a low starting torque.
- Option C: low inductance and low resistance. This option is not correct because the inner cage of a double cage induction motor has a high inductance.
- Option D: high inductance and high resistance. This option is not correct because the outer cage of a double cage induction motor has a low inductance.