UPPSC AE Paper-1 Quiz-14

An alternating current is given by the equation i = i₁ cos ωt + i₂ sin ωt. The rms current is given is given by

The diagram shows a capacitor C and a resistor R connected in series to an AC source V₁ and V₂ are voltmeters and A is an ammeter.

Consider now following conditions:

I. Reading in A and V₂ are always in phase

II. Reading in V₁ ahead in phase with reading in V₂.

III. Reading in A and V₁ are always in phase

Which of these statements are/is correct?

Electric Energy and Magnetic Energy are related to which of the following element respectively.

In a transistor, which of following statement holds true?

For a medium length transmission line, A is

A DC shunt motor runs at 500rpm at 220V, a resistance of 4.5ohm is added in series with armature for speed control, R_a is 0.5ohm, what is the armature current during stalling?

When a 2300/230 V, 50 KVA, 50 Hz transformer is connected as an auto-transformer to supply a 2300 V circuit from a 2530 V source. The KVA rating of auto transformer will be:

The transfer function of a system is given as settling time is 4 sec (Assuming 2% tolerance band)

The frequency of damped oscillation is:

An aquadag coating is used is a CRO to collect:

When two signals are applied on two axis of CRO. The Lissajous pattern visible is shown below. If the frequency of signal on y-axis is 1 KHz. frequency of signal on x-axis is :