A differential amplifier is invariably used in the i/p stage of all op-amps. This is done basically to provide the op-amps with a very high
Assume that the op-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be
With a unity load p.f, the effect of armature reaction on the main field flux of an alternator is
Zero power factor method of an alternator is used to find its
For a JFET, when VDS is increased beyond the pinch off voltage, the drain current
Which of the following component is usually fabricated out of silicon steel ?
The spring material used in a spring control device should have the following property.
In the cables, sheaths are used to
Solid type cables are considered unreliable beyond 66 kV because
PVC stands for
