A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

1.24.

0.25.

0.62.

0.72.

1.24.

0.25.

0.62.

0.72.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle?

45°

10°

30°

60°

45°

10°

30°

60°

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What is the reason for stationary armature essential in alternators above 5 KVA?

Collecting of large current is simple.

Insulation requirement is less.

All of these

Operating cost is less.

Collecting of large current is simple.

Insulation requirement is less.

All of these

Operating cost is less.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The back emf produced in a dc motor depends on

none of these.

P and Z.

P.

Z.

none of these.

P and Z.

P.

Z.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
_____________ types of induction motor are widely used.

Squirrel cage IM.

Single phase IM.

Three phase IM.

Slip ring IM.

Squirrel cage IM.

Single phase IM.

Three phase IM.

Slip ring IM.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The heat transfer by convection in a transformer least depends on

surface area.

color of the paint.

air velocity.

temperature difference.

surface area.

color of the paint.

air velocity.

temperature difference.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle?

Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA?

Electrical Machines The back emf produced in a dc motor depends on

Electrical Machines _____________ types of induction motor are widely used.

Electrical Machines The heat transfer by convection in a transformer least depends on

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines
A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle?

Electrical Machines
What is the reason for stationary armature essential in alternators above 5 KVA?

Electrical Machines
The back emf produced in a dc motor depends on

Electrical Machines
_____________ types of induction motor are widely used.

Electrical Machines
The heat transfer by convection in a transformer least depends on