For an inductor coil, \(L = 0.04 ~\text{H}\), the work done by a source to establish a current of \(5~\text{A}\) in it is:
1.  \(0.5~\text{J}\)
2.  \(1.00~\text{J}\)
3.  \(100~\text{J}\)
4.  \(20~\text{J}\)

Subtopic:  Self - Inductance |
From NCERT
AIPMT - 1999
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

For a coil having\(L=2~\mathrm{mh},\) the current flow through it is \(I=t^2e^{-t}.\) The time at which emf becomes zero is:
1. 2 s
2. 1 s
3. 4 s
4. 3 s

Subtopic:  Self - Inductance |
 61%
From NCERT
AIPMT - 2001
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh