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Test Index
Class 12 NEET Physics Electromagnetic Induction and Alternating Currents
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© examsnet.com
Question : 56
Total: 114
The primary of a transformer when connected to a dc battery of 10 volt draws a current of
1
m
A
. The number of turns of the primary and secondary windings are 50 and 100 respectively. The voltage in the secondary and the current drawn by the circuit in the secondary are respectively
(KN NEET 2013)
20
V
and
2.0
m
A
10
V
and
0.5
m
A
Zero volt and therefore no current
20
V
and
0.5
m
A
Validate
Solution:
Transformer cannot work on dc.
∴
V
s
=
0
and
I
s
=
0
© examsnet.com
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