When should you use a piece of pipe as a leverage extension on the handle on a wrench?
1 answer:
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Answer:
a)
b) north edge will rise up
Explanation:
torque on the coil is given as
where N is number of loop = 9 loops
i is current = 7.80 A
-B -earth magnetic field =
A- area of circular coil
A =0.015 m2
PUTITNG ALL VALUE TO GET TORQUE
b) north edge will rise up
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