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JEE Main Physics Class 12 Moving Charges and Magnetism Part 1 Questions
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Question : 62
Total: 100
This questions has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes into two Statements.
Statement-I :
Higher the range, greater is the resistance of ammeter.
Statement-II :
To increase the range of ammeter, additional shunt needs to be used across it.
[2013]
Statement-I is true, Statement-II is true, Statement-II is the correct explanation of Statement-I.
Statement-I is true, Statement-II is true, Statement-II is not the correct explanation of Statement-I.
Statement-I is true, Statement-II is false.
Statement-I is false, Statement-II is true.
Validate
Solution:
Statements I is false and Statement II is true
For ammeter, shunt resistance,
S
=
I
g
G
I
−
I
g
Therefore for
I
to increase,
S
should decrease, So additional
S
can be connected across it.
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