Curioustab

Home » Electrical Engineering » Magnetism and Electromagnetism

What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 µWb/At × m?

1111 At/Wb
111 At/Wb
11 At/Wb
1 At/Wb

Correct Answer: 1111 At/Wb

← Previous Question Next Question→

More Questions from Magnetism and Electromagnetism

When a solenoid is activated, the force that moves the plunger is
There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 µWb?
The voltage induced across a certain coil is 200 mV. A 120 Ω resistor is connected to the coil terminals. The induced current is
An electromagnetic field exists only when there is
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will
A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)?
What is the flux density when the flux is 5.5 µWb and the cross-sectional area is 6 × 10–3 m2?
If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage
A relay is an electromagnetically controlled mechanical device in which electrical contacts are opened or closed by a magnetizing current.
If a conductor is moved back and forth at a constant rate in a constant magnetic field, the voltage in the conductor will reverse polarity.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion