A milliammeter can be used as
1). Voltmeter and ammeter
2). Wattmeter
3). Ohmmeter
4). Frequency meter
Which of the following instruments can be used to measure AC current only?
a) Permanent Magnet Type ammeter
b) Induction type ammeter
c) Moving iron voltmeter
d) Moving iron ammeterRelative permittivity can be measured by _________ Bridge.
1). Wheatstone
2). Hays
3). Schering
4). Desauty’s
In a Weston frequency meter, the magnetic axes of the two fixed coils are
1). Parallel
2). Perpendicular
3). Inclined at 60°
4). Inclined at 120°
When measuring phase angle between two waves using a CRO, the time base generator is connected to
1). X plane
2). Y plane
3). Both X and Y plate
4). Neither X nor Y plates