Curioustab

Home » Electronics and Communication Engineering » Measurements and Instrumentation

In figure, Z1 = 200∠60° Ω, Z2 = 400∠ - 90° Ω, Z3 = 300∠0°. Then Z4 for bridge to be balanced is

150∠30° Ω
400∠ - 90° Ω
300∠90° Ω
600∠ - 150° Ω

Correct Answer: 600∠ - 150° Ω

Explanation:

.

← Previous Question Next Question→

More Questions from Measurements and Instrumentation

A moving coil instrument has a resistance of 0.5 Ω and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be
As per BIS there are 6 accuracy classes of instruments.
A piezoelectric force transducer has a charge sensitivity of 20 pC/N. It is connected to a charge amplifier and overall gain of transducer and amplifier is 50 mV/N. The gain of amplifier is
An ammeter of 0-25 A range has a guaranteed accuracy of 1% of full scale reading. The current measured is 5 A. The limiting error is
An LVDT is used to measure displacement. The LVDT feeds a Voltmeter of 0-5 V range through a 250 gain amplifier. For a displacement 0.5 mm the output of LVDT is 2 mV. The sensitivity of instrument is
In two wattmeter method of 3 phase power measurement, when does one wattmeter read negative
The household energy meter is
Induction wattmeter can be used in
A standard cell of 1.0185 V is used with a slide wire potentiometer. The balance was obtained at 60 cm. When an unknown emf was connected, the balance was obtained at 82 cm. The magnitude of unknown emf is
To increase Q factor of a coil, the wire should be

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion