Question : When several turns in a coil are tripled, without any change in the length of the coil, its self-inductance becomes:
Option 1: Nine times
Option 2: Three times
Option 3: Six times
Option 4: One-third
New: SSC CHSL Tier 2 answer key released | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: Nine times
Solution : The correct answer is Nine times.
Any conducting coil's ability to resist changes in current flow is known as self-inductance. A solenoid's self-inductance increases by nine times when the number of turns in the coil triples without any change in the coil's length. The coil's self-inductance is directly proportional to the square of the number of turns. The formula for the self-inductance (L) of a coil is L= μ⋅N2⋅A/ l.
Candidates can download this e-book to give a boost to thier preparation.
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Question : At a certain annual rate (rounded off to the nearest integer) of simple interest, a sum of money becomes nine times its original value in 21 years. By how much does the rate of interest change if the same sum of money has to become 12 times its original value in 25 years?
Question : Directions: Each of the letters in the word DONATE is arranged in alphabetical order. How many letters are there in the English alphabetical series between the letter which is third from the left and the one which is second from the right?
Question : The sum of the length and breadth of a cuboid is 4 cm. Length is three times the breadth. If the height of the cuboid is half of the sum of its length and breadth. Then what is the total surface area of the cuboid?
Question : The fifth edition of the Khelo India Youth Games will be held in ____________cities in Madhya Pradesh.
Question : How many times was the Preamble of the Constitution amended as of 2017?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile