Examsnet
Unconfined exams practice
Home
Exams
Banking Entrance Exams
Banking Entrance Exams
Defence Exams
Defence Exams
Engineering Exams
Engineering Exams
Finance Entrance Exams
Finance Entrance Exams
GATE Exams
GATE Exams
Insurance Exams
Insurance Exams
International Exams
International Exams
JEE Exams
JEE Exams
LAW Entrance Exams
LAW Entrance Exams
MBA Entrance Exams
MBA Entrance Exams
MCA Entrance Exams
MCA Entrance Exams
Medical Entrance Exams
Medical Entrance Exams
Other Entrance Exams
Other Entrance Exams
Police Exams
Police Exams
Public Service Commission (PSC)
Public Service Commission (PSC)
RRB Entrance Exams
RRB Entrance Exams
SSC Exams
SSC Exams
State Govt Exams
State Govt Exams
Subjectwise Practice
Subjectwise Practice
Teacher Exams
Teacher Exams
State Eligibility Tests
State Eligibility Tests
UPSC Entrance Exams
UPSC Entrance Exams
Aptitude
Algebra and Higher Mathematics
Algebra and Higher Mathematics
Arithmetic
Arithmetic
Commercial Mathematics
Commercial Mathematics
Data Based Mathematics
Data Based Mathematics
Geometry and Mensuration
Geometry and Mensuration
Number System and Numeracy
Number System and Numeracy
Problem Solving
Problem Solving
English
Competitive English
Competitive English
Board Exams
Andhra
Andhra
Bihar
Bihar
CBSE
CBSE
Gujarat
Gujarat
Haryana
Haryana
ICSE
ICSE
Jammu and Kashmir
Jammu and Kashmir
Karnataka
Karnataka
Kerala
Kerala
Madhya Pradesh
Madhya Pradesh
Maharashtra
Maharashtra
Odisha
Odisha
Tamil Nadu
Tamil Nadu
Telangana
Telangana
Uttar Pradesh
Uttar Pradesh
Certifications
Technical
Technical
Cloud Tech Certifications
Cloud Tech Certifications
Security Tech Certifications
Security Tech Certifications
Management
Management
IT Infrastructure
IT Infrastructure
More
About
Careers
Contact Us
Our Apps
Privacy
Test Index
JEE Main Physics Class 12 Moving Charges and Magnetism Part 2 Questions
Show Para
Hide Para
Share question:
© examsnet.com
Question : 1
Total: 100
Given below are two statements :
Statements I : If the number of turns in the coil of a moving coil galvanometer is doubled then the current sensitivity becomes double.
Statements II : Increasing current sensitivity of a moving coil galvanometer by only increasing the number of turns in the coil will also increase its voltage sensitivity in the same ratio
In the light of the above statements, choose the correct answer from the options given below :
[10-Apr-2023 shift 1]
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Validate
Solution:
I
=
k
θ
NBA
C
⋅
S
=
θ
I
=
NBA
K
N
→
2
N
C
⋅
S
→
2
CS
But V.S.
=
θ
V
=
NBA
KR
N
→
2
NC
⋅
S
→
2
CS
But V.S.
=
θ
v
=
θ
IR
=
NBA
RK
As
N
→
2
N
,
R
→
2
R
So V.S = constant
© examsnet.com
Go to Question:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Next Question