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GUJCET 2018 Physics Solved Paper
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© examsnet.com
Question : 41
Total: 41
A galvanometer of resistance 50Ω giving full scale deflection for a current of 10 milliampere is to be changed into a voltmeter of range 100 V.
A resistance of _____Ω has to be connected in series with the galvanometer
9950
10025
10000
9975
Validate
Solution:
100
=
(
R
+
50
)
×
10
×
10
−
3
R
+
50
=
10000
⇒
R
=
9950
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