-
In the ac circuit shown in the given figure, when the ammeter reads 10A, the readings on a voltmeter placed across the entire circuit and then across each element are given below. Match List-I (Position of the voltmeter) with List-II (readings on the voltmeter) and select the correct answer using the codes given below the list:
List-I List-II A. VT 1. 60 B. VR 2. 20 C. VL 3. 30 D. VC 4. 50 5. 110
A B C D
-
- A B C D
5 4 2 1
- A B C D
5 3 1 2 - A B C D
4 5 1 2
- A B C D
4 3 2 1
- A B C D
Correct Option: D
Given, I = 10A
R = 3Ω
XL = j2Ω
XC = – j6Ω
VR = IR = 10 × 3 = 30V
VL = IXL = 10 × 2 = 20V
VC = IXC = 10 × 6 = 60V
VT = √VR2 + (VL ~ VC)2
or
VT = √302 + (60 – 20)2
or
VT = √302 + 402
or
VT = 50
Finally →
 |  | ||
| VR | = 30V | ||
| VL | = 20V | ||
| Vc | = 60V |
