Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Find the time taken for the current in an ind...
Start Learning for Free
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.
- a)1s
- b)2s
- c)3s
- d)4s
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Find the time taken for the current in an inductor to change to 2A fro...
The expression for power in an inductive circuit is:
P= LI2/2
Substituting the values from the given question, we get t=4s.
P= LI2/2
Substituting the values from the given question, we get t=4s.
Most Upvoted Answer
Find the time taken for the current in an inductor to change to 2A fro...
Power=1/2LI²
5=1/2*10*I² then I =1amp then v = power/I² v =5volt
v =-Ldi/dt
5=-10(0-2)/dt
dt=20/5 =4 sec
5=1/2*10*I² then I =1amp then v = power/I² v =5volt
v =-Ldi/dt
5=-10(0-2)/dt
dt=20/5 =4 sec
Free Test
FREE
| Start Free Test |
Community Answer
Find the time taken for the current in an inductor to change to 2A fro...
Given data:
- Power in the inductor = 5W
- Inductance = 10H
- Final current = 2A
- Initial current = 0A
Formula:
- Power in an inductor, P = I^2 * R, where R is the resistance of the inductor
- Time constant, τ = L / R
- Time taken to reach final current, t = τ * ln(I_final / I_initial)
Calculation:
- From the given data, Power (P) = 5W
- We know that Power (P) = I^2 * R
- Since the resistance of the inductor is not given, we cannot directly calculate the current. However, we can find the time constant using the formula τ = L / R.
- Given, L = 10H
- Let's assume the resistance R = 1Ω (for simplicity)
- Therefore, time constant, τ = 10 / 1 = 10s
- Now, we can calculate the time taken for the current to change from 0A to 2A using the formula t = τ * ln(I_final / I_initial)
- Substituting the values, t = 10 * ln(2 / 0) = 10 * ln(∞) = 10 * ∞ = ∞
Conclusion:
The time taken for the current in an inductor to change to 2A from 0A is theoretically infinite.
- Power in the inductor = 5W
- Inductance = 10H
- Final current = 2A
- Initial current = 0A
Formula:
- Power in an inductor, P = I^2 * R, where R is the resistance of the inductor
- Time constant, τ = L / R
- Time taken to reach final current, t = τ * ln(I_final / I_initial)
Calculation:
- From the given data, Power (P) = 5W
- We know that Power (P) = I^2 * R
- Since the resistance of the inductor is not given, we cannot directly calculate the current. However, we can find the time constant using the formula τ = L / R.
- Given, L = 10H
- Let's assume the resistance R = 1Ω (for simplicity)
- Therefore, time constant, τ = 10 / 1 = 10s
- Now, we can calculate the time taken for the current to change from 0A to 2A using the formula t = τ * ln(I_final / I_initial)
- Substituting the values, t = 10 * ln(2 / 0) = 10 * ln(∞) = 10 * ∞ = ∞
Conclusion:
The time taken for the current in an inductor to change to 2A from 0A is theoretically infinite.
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer?.
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.a)1sb)2sc)3sd)4sCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily