Home / Alternating Current – 1 – 2

Alternating Current – 1 – 2

6. The root mean square value of voltage (V) in an AC circuit is :

(a) 0.637Vmax
(b) 0.707 Vmax
(c) 2Vmax
(d) 2 Vmax

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

7. The power factor in AC circuit is equal to :

(a) Z/R
(b) R/Z
(c) RZ
(d) none of the

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

8. A series AC circuit has a resistance of 12 Ω and reactance 5 Ω. The impedance of circuit is :

(a) 5 Ω
(b) 12 Ω
(c) 13 Ω
(d) 17 Ω

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

9. In an AC series circuit, instantaneous voltage is maximum while instantaneous current is zero. The source is connected to :

(a) pure inductor only
(b) pure resistance only
(c) pure capacitor only
(d) (a) or (c)

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

10. If the mean value of an alternating voltage is (28 √2)/π volt, its rms value is :

(a) 28 volt
(b) 14 volt
(c) 142 volt
(d) zero

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

1 2

General Knowledge Books

Be a Part of the New & Next

MCQs fb  MCQs G+

Share the Knowledge

MORE INFORMATION
GATE Total InfoGATE 2019 BooksFree Notes
IES Total InfoIES 2019 BooksFree Mock tests
JAM Total InfoJAM 2019 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info
Copy Protected by Chetan's WP-Copyprotect.