The magnetic energy stored in an inductor of inductance 4 H carrying a current of 2 A is:
Physics · NEET · NTA Exams — Electromagnetic Induction and Alternating Currents
The magnetic energy stored in an inductor of inductance 4 μH carrying a current of 2 A is:
- 8 μJ
- 4 μJ
- 4 μJ
- 8 mJ
Answer
(B) 4 J
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A step-down transformer reduces the voltage of a transmission line from 2200 V to 220 V. The power delivered…
- Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon
- In a series LCR circuit, R = 200 Ω and the voltage and the frequency of the main supply is 220 V and 50 Hz…
- The magnetic flux through a loop of resistance 10 Ω is given by = [5 t^ 2 -4 t+1 ] Wb . How much current is…
- In a series resonant R-L-C circuit, the voltage across R is 100 V and the value of R = 1000 Ω. The…
- A step-down transformer is used on a 1000 V line to deliver 20 A at 120 V at the secondary coil. If the…
- In a LCR series circuit, the potential difference between the terminals of the inductance is 60 V, between…
- Power dissipated in an L-C-R series circuit connected to an AC source of emf E is
More Electromagnetic Induction and Alternating Currents questions · Browse all practice questions