Measurement and Instrumentation
If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms

 The bridge can be balanced.
 The bridge can not be balanced.
 The bridge is balanced for some specified value of frequency.
 The bridge is balanced for some specified value of R1, R2, R3.

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Measurement and Instrumentation
A resistance of 105 ohms is specified using significant figures as indicated below : 1. 105 ohms 2. 105.0 ohms 3. 0.000105 mega ohms Among these,

 2 represents greater precision but 1 and 3 represent same precision.
 1 represents greater precision than 2 and 3.
 2 and 3 represent greater precision than 1.
 1, 2 and 3 represent same precision.

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