The loudness of a sound is determined by the __________, or height, of the sound wave.
2 answers:
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Answer:
Explanation:
Given data:
diameter of solenoid is 11.1 cm
B = 42.9 mT
dR = 6.65 mT/s
d(1) = 4.34 cm
d(2) = 7.46 cm
we know that
electric field due to solenoid is given as
E = 1/2 dB/dt (r)
E = 1/2 dB/dt (R^2)/r
The answer is 500 A/sec.
N=10 ; Solensid; L=4 m H ;
So, 500 A/sec.
What is Solensid?
- Electromagnets are magnets in which the wire is coiled around an iron core. When an electric current is applied to the iron core, a magnetic field is formed around it. When the power is turned off, the magnetic field dissipates. The wire-wound core of the magnet is ferromagnetic or ferrimagnetic in nature. The most prevalent material utilised in the core is iron.
- The magnetic field created is governed by the availability of power. A permanent magnet does not require electricity, and its magnetic field cannot be changed. Solenoid, MRI machines, hard drives, relays, motors, loudspeakers, and generators all employ electromagnets.
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