JEE Physics Alternating Current MCQs Set B

    Question: a) b) c) d) Zero Answer:   Question:  A coil has resistances 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an AC source, of 200 volt, 100 Hz is connected across the coil, the current in the…

JEE Physics Alternating Current MCQs Set A

    Question: Hot wire ammeters are used for measuring a) Both AC and DC b) Only AC c) Only DC d) Neither AC nor DC Answer: Both AC and DC   Question: In alternating current circuits, the a.c. meters measure a) r.m.s. value b)…