ICSE Class 10 Physics 2016 Solved Paper
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A music system draws a current of 400 mA 12 V
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Question : 19
Total: 73
What is the resistance of the music system?
Solution:
Given : I = 400 mA =
= 0.4 A V = 12 V
Resistance of the music system=
=
=
= 30 Ω .
Resistance of the music system
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