What is the meaning of[img=31x25]17de809ba6b2a44.jpg[/img]?[img=362x202]17de809bb25fc43.jpg[/img]
A: Permeability of the air gap
B: Reluctance of the air gap
C: Length of the air gap
D: Length of the magnetic circuit
A: Permeability of the air gap
B: Reluctance of the air gap
C: Length of the air gap
D: Length of the magnetic circuit
举一反三
- For a magne2c circuit with air gap, if the magneto-mo2ve force remains unchanged and the air gap length is increased (Rm increases), the magne2c flux in the air gap will ( ). A: not sure B: decrease C: increase D: remain the same
- Given that the magnetic circuit of DC electromagnet. The voltage U is constant . How will the Magnetic flux [img=13x19]1803a2fab6cb10e.png[/img] change when the air gap length increases ( ).[img=455x406]1803a2fac3677ca.jpg[/img] A: increase B: decrease C: remain unchanged D: not sure
- Given that the magnetic circuit of AC electromagnet. The voltage U is constant . How will the Magnetic flux [img=13x19]1803a2fa8f20802.png[/img] change when the air gap length increases ( ).[img=455x406]1803a2fa9d5f73f.jpg[/img] A: increase B: decrease C: remain unchanged D: not sure
- Given a voice signal [img=31x25]1803377a105a2ae.png[/img],if we transform the signal to a new signal [img=108x25]1803377a1936ebf.png[/img], what will the new signal [img=30x25]1803377a217e8d9.png[/img] be different from the original signal [img=31x25]1803377a2928967.png[/img]? A: The length of [img=30x25]1803377a3149b0c.png[/img] will be extended, and the pitch will be higher. B: The length of [img=30x25]1803377a3149b0c.png[/img] will be extended, and the pitch will be lower. C: The length of [img=30x25]1803377a3149b0c.png[/img] will be compressed, and the pitch will be higher. D: The length of [img=30x25]1803377a3149b0c.png[/img] will be compressed, and the pitch will be lower.
- What is the meaning of [img=36x37]1803a2fa28d2e21.jpg[/img]?[img=438x327]1803a2fa36fd650.jpg[/img] A: Coercive force B: Permeability C: Main flux D: Remanence