0
0
An inductor supplied with 100 V AC with a frequency of 10 kHz passes a current of 10 mA. The value of the inductor is
An inductor supplied with 100 V AC with a frequency of 10 kHz passes a current of 10 mA. The value of the inductor is
1). 1.7 H
2). 16 mH
3). 1 mH
4). 160 mH
1). 1.7 H
2). 16 mH
3). 1 mH
4). 160 mH
This Question has 1 answers.
Given that, voltage (V) = 100 V
Frequency (f) = 10 kHz
Current (I) = 10 mA
$({X_L} = \frac{V}{I} = \frac{{100}}{{10 \times {{10}^{ - 3}}}} = {10^4}{\\rm{\;\Omega }})$
$(\Rightarrow 2\pi fL = {10^4})$
$(\Rightarrow L = \frac{{{{10}^4}}}{{2\pi \times 10 \times {{10}^3}}} = 159.15\;mH \approx 160\;mH)$Similar Questions
- Nidhi received simple interest off Rs. 1200 when invested Rs x at 6% p.a. and Rs y at 5% p.a. for 1 year. Had she invested Rs. x at 3% p.a. and Rs. y at 8% for that year, she would have received simple interest of Rs 1,260. Find the values Rs. x an y.
- A vessel contains 20 litres of acid. 4 litres of acid is taken out of the vessel and replaced by the same quantity of water. Next 4 litres of the mixture are with, drawn, and again the vessel is filled with the same quantity add left in the vessel with t
- Two trains of length 100 m and 80 m respectively run on parallel lines of rails. When running in the same direction the trains pass each other in 18 s, but when they are running in opposite directions with the same speeds as earlier, they pass each other
- Three persons started to complete a project for Rs. 1,600. The first person can complete the project in 8 days, the second person in 12 days and the third person in 16 days. They complete the project together with the help of a fourth person in 3 days.
- A jar contains a blend of a fruit juice and water in the ratio 5 ∶ x. When 1 litre of water is added to 4 litres of the blend the ratio of fruit juice to water becomes 1 ∶ 1. What is the value of x?