Measurement and Instrumentation
The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ?

 ± 3.0%
 ± 1.5%
 ±3.5%
 ±0.5%

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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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