mamama

A 3 1/2 digit voltmeter having a resolution of ra=200mv can be used to masure maximum voltage of

• 200v

• 400v

• 2000v

• 1500v

Tags

CCSS.6.RP.A.3D

To send 10% of the main current through a moving coil galvanometer of resistance 9.9 Ohms, the shunt required is

• 1,1 ohms

• 99 ohms

• 100 ohms

• 9 ohms

In the balanced bridge shown in the figure X should be

• a self-inductance having resistance

• a capacitance

• a non-inductive resistance

• an inductance and a capacitance in parallel

What is the moving part of a linear variable differential transformer

• primary

• secondary

• diaphragm

• core

Which one of the following is the best definition of accuracy

• it is the meeasure of consistency or reporducibility of measurments

• it is the ratio of the change in output signal to the change in input signaal

• it is the smallest change in mesurable input

• it is the closeness with which an instrument reading approachs the true value of the quantity being measurd

Rectifier based electronic voltmeters indicate

• RMS values

• Peak values

• Mean values

• None of these

At the oscilloscope the volts per division control is used to

• scale a waveform vertically

• position a waveform vertically

• attenuate or amplify an input signal

• set the numbers of volts each divison represents

Simple D to A conversion can b achieved using a weighted series of resistors nd a single op amp configured in which of the following mode?

• voltaage follower

• integrator

• summing amplifier

• diffeerential amplifier

ammeter shunts are usually equipped with

• 2 connection termianls

• 3 connection termianls

• 4 connection termianls

• 5 connection termianls

the internal resistance of an ammeter should be

• high

• mdium

• vry small

• infinity