EXAMIANS
A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is
YOUR ANSWER : ?
YOUR ANSWER : ?
Most accurate measurement of unknown resistance will be by
YOUR ANSWER : ?
The measured value of a resistance is 10.25 ohm, whereas its value of 10.22 ohm. What is absolute error of the measurement?
YOUR ANSWER : ?
A pressure measurement instrument is calibrated between 10 bar and 260 bar. The scale span of the instrument is
YOUR ANSWER : ?
A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is
YOUR ANSWER : ?
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is
YOUR ANSWER : ?
In induction type ammeter, _____ damping is provided.
YOUR ANSWER : ?
For handling greater currents induction watt-meters are used in conjunction with
YOUR ANSWER : ?
The multiplier and the meter coil in a voltmeter are in
YOUR ANSWER : ?
What is the name of physical quantities which are independent of each other?
YOUR ANSWER : ?