Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 1 (Q.No. 17)
17.
In a ballistic galvanometer, a charge of 100 μC gives a first swing of 25°. The charge required to cause first swing of 50° is
200 μC
400 μC
50 μC
25 μC
Answer: Option
Explanation:

swing is proportional to charge.

Discussion:
14 comments Page 2 of 2.

Usama Akhtar said:   7 years ago
Q=kd.
100/25=4=k,
Q=4*50=200.

Tawanda Moyo said:   1 decade ago
Why not x2 to give 200?

Santosh said:   9 years ago
How the answer is 400?

Cheetha said:   1 decade ago
What is the formula?


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