PYQs Based test 16: Electrical & Electronic Measurements

Match the following:

Instrument type

P) Permanent magnet moving coil

Q) Moving iron connected through current transformer

R) Rectifier

S) Electrodynamometer

Used for

1. DC only

2. AC only

3. DC and AC

Inductance is measured by

Two wattmeter method is used for measurement of power in a balanced three-phase load supplied from a balanced three-phase system. If one of the wattmeters reads half of the other (both positive), then the power factor of the load is

The Primary mmf is least affected by the secondary terminal condition in a

The slope and level detector circuit in a CRO has a delay of 100 ns. The start-stop sweep generator has a response time of 50 ns. In order to display correctly, a delay line of