Select all that are true. Group of answer choices major parts of a dc motor are stator, rotor, commutator, and brushes. If the rotor of a dc motor consists of just one conductor loop, the output torque will vary in magnitude from zero to a maximum and back to zero over every half turn of the rotor. Using multiple loops in the rotor of a dc motor not only gives higher torque but also ensures a constant magnitude of the output torque. Using electromagnets in the stator of a dc motor makes higher torque values possible. In a series motor, rotor and stator are connected in series. In a shunt motor, a bypass circuit is provided to prevent overload.

Answers

Answer 1

In the context of a DC motor following statements given in options A,B,D, and E are true.

A DC motor belongs to a class of electrical motors that convert direct current electrical energy into mechanical energy, meaning that any electric motor that operates using direct current is referred to as a DC motor.

True statements are as follows:

'Major parts of a DC motor are the rotor, stator, commutator, and brushes'. 'If the rotor of a DC motor consists of just one conductor loop, the output torque varies in magnitude from zero to a maximum and back to zero over every half turn of the rotor.' 'Using electromagnets in the stator of a DC motor creates higher torque values possible'.'In a series DC motor rotor and stator are connected in series'.

While statements given in options C and F are incorrect. Which are:  

'Using multiple loops in the rotor of a DC motor not only provides higher torque but also ensures a constant magnitude of the output torque'. 'In a DC shunt motor, a bypass circuit is provided to prevent overload'.

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Circuit swtiching requires what type of channel, which means it is assigned exclusively to one call for the duration of the connection and cannot be used by another phone call?.

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