Suppose that you are taking a course in geometry. You are trying to determine whether two geometric shapes are identical, so you
1 answer:
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Answer:
L = 0.0319 H
Explanation:
Given that,
Number of loops in the solenoid, N = 900
Radius of the wire, r = 3 cm = 0.03 m
Length of the rod, l = 9 cm = 0.09 m
To find,
Self inductance in the solenoid
Solution,
The expression for the self inductance of the solenoid is given by :
L = 0.0319 H
So, the self inductance of the solenoid is 0.0319 henries.
Answer:
Noise level will be -18.2 watt
So option (b) will be correct answer
Explanation:
We have given sound intensity
And threshold intensity ( in question it is given as
but its standard value is
)
Now noise level
So the noise level will be -18.2
So option (b) will be correct answer