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Parallel Circuits

Q1:

Which are the better test devices used to isolate a suspected open component within a parallel circuit?

A a voltmeter or an ohmmeter

B neither an ammeter nor a voltmeter

C a wattmeter or a voltmeter

D an ammeter or an ohmmeter

ANS:D - an ammeter or an ohmmeter

For an open circuit, the ammeter will show minimum value while the ohmmeter will show maximum value. Since both the ends are open, the voltmeter will show some value across the two ends.



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