Self Inductance Project
Self Inductance Project
Self Inductance Project
NAUSENABAUGH, VISAKHAPATNAM
INVESTIGATORY PROJECT
SCHOOL REPORT
OF EXCELLENCE
INVESTIGATORY PROJECT
In partial fulfillment of AISSCE 2019
FACTOR ON WHICH SELF - INDCUTANCE OF A
physics practical.
COIL DEPENDS
Name:
Name:Vishwajeet
Raj Kunwarverma
Class:
Class:XII -B
XII-A
Roll No:
No:05
09
AIM:
AIM:--
APPARATUS:
APPARATUS:--
µ0 µ𝑟 𝑁2 𝐴
L=
𝑙
l = length of solenoid.
Hence, the self inductance depends upon:
𝐸𝑟𝑚𝑠
𝐼𝑟𝑚𝑠 =
𝑍
H = 𝐼𝑟𝑚𝑠
2
Zt
𝐻
P= = 𝐼𝑟𝑚𝑠
2
Z
𝑡
P = 𝐼𝑟𝑚𝑠
2
√𝑅2 + 𝜔2 𝐿2
CIRCUIT DIAGRAM:-
PROCEDURE:-
1. Make all connections as shown in the
circuit diagram.
OBSERVATIONS:-
1. Least count of ammeter = 0.05 A.
3. Range of ammeter = 0 – 5 A.
S.NO Frequency Current in Current in
of applied ammeter ammeter with
voltage without iron iron rod in
(Hz) rod in coil (A) coil (A)
1. 60 2 1.8
2. 50 2.5 2.3
3. 40 2.9 2.6
4. 30 3.4 3.25
5. 20 4.1 4
RESULT:-
1. The current in the circuit decrease on
inserting the iron rod in the core of coil at
constant frequency of applied voltage &
brightness of bulb decreases & vice-versa.
2. The current in the circuit increases on
decreasing the frequency of applied voltage
& vice-versa. Therefore, the brightness of
bulb increases.
PRECAUTIONS:-
1. The coil should have large number of
turns.
SOURCES OF ERRORS:-
1. The resistance of circuit may increase
slightly due to heating effect of current.
S.NO CONTENTS
1. AIM
2. APPARATUS
4. PROCEDURE
5. OBSERVATION
6. RESULT
7. PRECAUTIONS
8. SOURCES OF ERRORS