CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Field Due to a Solenoid

The armature ...

Question

The armature current in a dc motor is maximum when the motor has

A

picked up maximum speed

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

just started

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

intermediate speed

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

just been switched off

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
just started

$I = \frac{E - e}{R}$

is maximum if back emf is minimum when motor has just started.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A DC series motor has linear magnetization and negligible armature resistance. The motor speed is

Q. A 280 V, separately excited lap wound dc motor has 100 armature conductor. Flux per pole is 0.15 Wb. Armature resistance is 0.2

Ω

. If motor is running at 1000 rpm, then armature current is

Q. The armature of

D C

20 Ω

resistance. It draws current of

1.5 A

220 V

DC supply. The value of back emf induced in it will be :

Q. The armature of a 4-pole dc shunt motor has a lap winding accommodated in 60 slots, each containing 20 conductors. If the useful flux per pole is 23 mWb and the armature current is 50 A, then the torque (in N-m) developed in motor is

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

PHYSICS

Watch in App

explore_more_icon

Explore more

Field Due to a Solenoid

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon