Home
Class 12
PHYSICS
A long solenoid has 1000 turns. When a c...

A long solenoid has 1000 turns. When a current of 4A flows through it, the magnetic flux linked with each turn of the solenoid is `4xx10^(-3)Wb`. The self-inductance of the solenoid is

A

3 H

B

2 H

C

1 H

D

4 H

Text Solution

Verified by Experts

The correct Answer is:
C
If the number of turns of the solenoid is N, current through it is I and the magnetic flux linked with each turn of the solenoid is `phi`, then its self-inductance,
`L=(Nphi)/(I)=(1000xx(4xx10^(-3)))/(4)=1H`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|28 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise AIPMT|2 Videos

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise CBSE Scanner|13 Videos

  • ELECTROMAGNETIC WAVES

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|17 Videos

Similar Questions

Explore conceptually related problems

A solenoid with 7 turns per unit length is carrying a current of 2.5A . What is the magnetic intensity inside the solenoid ?

The inductance of a coil of 400 turns is 8 mH. If a current of 5 mA flows through the coil, calculate the magnetic flux linked with it.

Knowledge Check

  • The self-inductance of a long straight solenoid is L. Each of the length, the diameter and the number of turns of another solenoid is double that of the first. The self-inductance of the second solenoid is

    A
    2L
    B
    4L
    C
    8L
    D
    16L

  • The length and radius of a solenoid of N turns are l and r respectively. The self-inductance of the solenoid is

    A
    proportional to N
    B
    proportional to `N^(2)`
    C
    inversely proportional to r
    D
    inversely proportional to l

    • Similar Questions

    Explore conceptually related problems

    A 0.5 m long solenoid has 500 turns and has a flux density of 2.52xx10^(-3)T at its centre. Find the current in the solenoid.

    Statement I: Self-inductance of a solenoid having 1000 turns is 100 mH if the associated magnetic flux linked with each turn is 10^(-3) Wb for a current of 1 A passig through the solenoid. Statement II: The self-inductance L of a coil is defined as phi=LI when phi is the magnetic flux linked with the coil for a current I through it.

    A solenoid carrying 1 A current has a length of 1 m and contains 10000 turns. What is the magnetic field on the axis of the solenoid ?

    Self-inductance of a coil is 1H. If 1A current passes through it, what will be the magnetic flux linked with the coil?

    The length of long straight solenoid is 10 cm and the number of turns in it is 200. If 1 A current flows through it, determine the magnetic field at any on the aixs of the solenoid.

    The self inductance of a long solenoids L. Another solenoid is' taken which has length diameter and no of turns double that of the previous one. What will be the self inductance of the new solenoid:

    Home
    Profile