NEET 2007 Physics question

What is the value of inductance L for which the current is a maximum in a series LCR circuit with and ?

(1)10 mH
(2)100 mHCorrect
(3)1 mH
(4)cannot be calculated unless R is known

Answer: (2)

Solution

In a series LCR circuit the current is maximum at resonance, when , i.e. , giving . Hence \frac{1}{ω^2C}\frac{1}{(1000)^2 × 10 × 10^{-6}}\frac{1}{10}$ = 0.1\ H = 100\

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-089920