JEE Mains · Physics · STD 12 - 4. Moving charges and magnetism
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 ameter.
Statement\(-II\) : To increase the range of ammeter, additional shunt needs to be used across it.
- A Statement\(-I\) is true, Statement\(-II\) is true, Statement\(-II\) is the correct explanation of Statement\(-I.\)
- B Statement\(-I\) is true, Statement\(-II\) is true, Statement\(-II\) is not the correct explanation of Statement\(-I.\)
- C Statement-\(I\) is true, Statement-\(II\) is false
- D Statement-\(I\) is false, Statement-\(II\) is true.
Answer & Solution
Correct Answer
(D) Statement-\(I\) is false, Statement-\(II\) is true.
Step-by-step Solution
Detailed explanation
Statements \(I\) is false and Statement \(II\) is true For ammeter, shunt resistance, \(\mathrm{S}=\frac{\mathrm{IgG}}{\mathrm{I}-\mathrm{Ig}}\) Therefore for \(I\) to increase, \(S\) should decrease, So additional \(S\) can be connected across it.
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