NEET
- Exam
- NEET
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- Physics
- Chapter
- Alternating Current
NEET · Physics · Alternating Current
Match the column ( Column-I Column-II (a) In L-R series AC circuit...
Match the column
(
)
| Column-I | Column-II | ||
| (a) | In L-R series AC circuit | (p) | Current lags voltage by \pi/2 |
| (b) | In R-C series AC circuit | (q) | Current lags voltage by angle < \pi/2 |
| (c) | In L-C series AC circuit (X_L > X_C) | (r) | Current leads voltage by angle < \pi/2 |
| (d) | In purely resistive AC circuit | (s) | Current and voltage are in phase |
Options
- Aa-q, b-r, c-p, d-s
- Ba-s, b-q, c-p, d-r
- Ca-s, b-r, c-q, d-p
- Da-p, b-s, c-r, d-q
Correct answer
A. a-q, b-r, c-p, d-s
Step-by-step solution
Column-I:
(a) In L-R series AC circuit: In an L-R circuit, the current lags behind the voltage due to the inductor. The phase difference is less than (\pi / 2).
(b) In R-C series AC circuit: In an R-C circuit, the current leads the voltage. The phase angle is also less than (\pi / 2).
(c) In L-C series AC circuit (XL > XC): Here, the reactance of the inductor (XL) is greater than that of the capacitor (XC), causing the current to lag behind the voltage by (\pi / 2).
- (d) In purely resistive AC circuit: In a purely resistive circuit, the current and voltage are in phase.
Now, let's match them:
1. (a) In L-R series AC circuit - (q):
Current lags voltage by an angle less than (\pi / 2).
2. (b) In R-C series AC circuit - (r):
Current leads voltage by an angle less than (\pi / 2).
3. (c) In L-C series AC circuit (XL > XC)
- (p): Current lags voltage by (\pi / 2).
4. (d) In purely resistive AC circuit -
(s): Current and voltage are in phase.
So the correct matching is:
(1) a-q, b-r, c-p, d-s
Answer: (1) a-q, b-r, c-p, d-s