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Byju's Answer
Standard XII
Physics
Inductors in Circuits
The armature ...
Question
The armature of dc motor has 20 . It draws current of 1.5A when run by 220v dc. The value of back emf induced in it will be
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Q.
The armature of
D
C
motor has
20
Ω
resistance. It draws current of
1.5
A
when run by
220
V
DC supply. The value of back emf induced in it will be :
Q.
The current drawn by a
220
V
DC series motor of armature resistance
0.50
and back emf
200
V
is
Q.
An electric motor runs on
D
C
source of emf
200
V
and draws a current of
10
A
. If the efficiency be
40
%, then the resistance of armature is
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