The current in a circuit follows the relation i = 100sin?t. If frequency is 25 Hz, how long will it take for the current to rise to 50 A ? a.) 1 ms. b.) 3.33 ms. c.) 10 ms. d.) 20 ms.

Asked by Last Modified  

9 Answers

Follow 7
Answer

Please enter your answer

i= sin wt f= 25 HZ w= 2×pi×f t=? 50=100 sin wt 50=100 sin (2×180×25) t 50/100= sin 9000 t 1/2=sin 9000 t Sin-' (1/2)= 9000t sin -' (1/2)=30 30= 9000 t t = 30/9000 t = 1/300 = 3.33 ms.
read more
i= sin wt f= 25 HZ w= 2×pi×f t=? 50=100 sin wt 50=100 sin (2×180×25) t 50/100= sin 9000 t 1/2=sin 9000 t Sin-' (1/2)= 9000t sin -' (1/2)=30 30= 9000 t t = 30/9000 t = 1/300 = 3.33 ms. read less
Comments
Dislike Bookmark

Specialization in Organic Chemistry. Teaching Chemistry has always been my passion.

B) 3.33 ms
Comments
Dislike Bookmark

Headstart to assured 95+ score in math

Please repost the query
Comments
Dislike Bookmark

Power To Teach

50=100sin(2pi25) t after solving we get t=3.33ms
Comments
Dislike Bookmark

Trainer

Solution: i = 100 sin(wt) 50=100 Sin(wt) wt = Arc Sin(1/2)= pi/6 radians but w = 2 pi 25hz= 50 pi wt = 50 pi t= pi/6 t= pi/6w= pi/( 6 x 50 pi) = 3.36 ms
Comments
Dislike Bookmark

Don't want to over express myself, just join and feel the experience.

b
Comments
Dislike Bookmark

PHYSICS MENTOR

3.33ms
Comments
Dislike Bookmark

Physics Projectile

3.33ms, as for I to be 50A sinwt needs to be half..
Comments
Dislike Bookmark

B
Comments
Dislike Bookmark

View 7 more Answers

Related Questions

Why Bamford-Stevens reaction give carbenes in aprotic solvent and carbonium ions in protic solvents?
The carbon atoms of singlets are sp2-hybridised, with one empty p-orbital crossing the plane ... Such molecules are generally very short lived, although persistent carbenes are known. .... of diazoalkanes...
Abdur Rahman W.
0 0
6
There is no agreement regarding sharing of profits (or) partnerships salary. Rose is a whole-time partner whereas Lilly does not attend business regularly. Rose claims Rs 3,000 salary a month and 60% of balance profits Rs 24,600 Lilly advanced Rs 10,000 as loan and now she claims 10% interest. State how you will settle the accounts.
No salary to any partner. Profits will be shared equally. Interest on loan will be paid at 6% p.a.
Shubham
0 0
6
Why are Bryophytes regarded as the amphibians of plant kingdom?
Amphibians are those organisms which live on both land and in water. Bryophytes are called amphibians of the plant kingdom because these plants though live in soil but they need water for sexu@l reproduction.
Sarita
0 0
8
I want to crack NEET. What should I do now? I am in 11th standard.
NEET has syllabus of Class XI and XII. Study class XI subjects with NEET (to clear) as target (and not XI). Similarly when you go to class XII, do it the same way. Start preparing for NEET from to-day.
Sayan
Which is the best book to teach PUC 1st year accountancy (Board State)?
Sultan Chand Publication by TS Grewal
Ambika A.

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

For NEET/ IIT Aspirants - Reaction With Butyllithium And Caron-Dioxide
Butyl-lithium is principally valued as an initiator for the ionic polymerization of dienes,such as butadienes. The reaction is called "carbolithiation". C4H9LI + CH2=CH-CH=CH2 → C4H9-CH2-CH=CH-CH2Li Butyl-lithium...

Nidhi T.

0 0
0
Business Studies CLASS - XII, Ch - 1, 2, 3 Questions And Answers.
Business Studies: CLASS - XII Ch- 1, 2, 3 MM: 32 Time: 1 hour What is meant...

Mahesh Kumar

1 0
0
Problem on limits
Let's solve a problem on limits Find limit: x→0 (1 - cos2x ) /(x²) On direct substitution we get 1 - 1/0 = 0/0 which is in indeterminate form Let's substitute (1 - cos 2x ) = 2 sin²...

B.sudhakar

3 0
0
Semiconductors in a nutshell
What are semiconductors? Semicondutcors are substances which have conductivity in between conductors and insulators. Example: Germanium and Silicon. What are the types of semiconductors? Intrinsic semiconductors:...

Athira S N.

1 0
0
Features Of Joint Stock Company
What are features of a joint stock company?

Rajiv Vadera

0 0
0

Recommended Articles

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Radhe Shyam Burman, an MBA Tutor from...

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Find Class XII Tuition near you
Class XII Tuition in Delhi
Class XII Tuition in Bangalore
Class XII Tuition in Hyderabad
Class XII Tuition in Chennai
Class XII Tuition in Kolkata
Class XII Tuition in Mumbai
Class XII Tuition in Pune
Class XII Tuition in Noida
Class XII Tuition in Gurgaon
Class XII Tuition in Lucknow
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you