1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
When an A.C. source is connected to a inductive circuit,
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
In the $$\mathrm{A} . \mathrm{C}$$. circuit given below, voltmeters $$\mathrm{V}_1$$ and $$\mathrm{V}_2$$ read $$100 \mathrm{~V}$$ each. Find the reading of the voltmeter $$\mathrm{V}_3$$ and the ammeter $$\mathrm{A}$$.
3
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
A transformer has 400 turns in its primary winding and 800 turns in its secondary winding. The primary voltage is $$20 \mathrm{~V}$$ and the load in the secondary is 4 ohm. The current in the primary, assuming it to be an ideal transformer, is
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
A group of devices having a total power rating of 500 watt is supplied by an $$\mathrm{AC}$$ voltage $$E=200 \sin \left(3.14 t+\frac{\pi}{4}\right)$$. Then the r.m.s. value of the circuit current is
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