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Electromagnetism

Rectangular plate has a voltage of +180V and another rectangular plate (parallel to

plate to the first plate) has a voltage of -5V. Determine the field strength at any point

between these two plates? The distance of separation of the plates is finite, say 8.6mm

Electromagnetism

a proton moving horizontally at 3.7 x 10 to the fifth power ms and thirst and a uniform magnetic field of 0.08 e60 directed upward at 35 degrees with the horizontal find the magnitude of the magnetic force acting on the proton

Electromagnetism

A flexible rectangular coil of wire with 150 loops is stretched in such a way that its dimension changes from 5 cm x 8 cm to 7 cm x 11 cm in 0.15 s in a magnetic field of 25T that is 30 degrees relative to the plane of the coil.

a. Calculate the induced EMF

b. How much energy in joules was dissipated in the circuit if the total resistance is 100Ω?

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Given:

Solution:

Electromagnetism

A circular loop of wire of radius 0.25 cm is expected to an external magnetic field that is perpendicular to the plane of the loop. For a time, the magnetic field decreases at a rate of 0.0035 T/s. What is the magnitude of the induced electromagnetic force in the loop?

Show step by step solution:

Given:

Solution:

Electromagnetism

A circular loop of wire of radius 0.25 cm is expected to an external magnetic field that is perpendicular to the plane of the loop. For a time, the magnetic field decreases at a rate of 0.0035 T/s. What is the magnitude of the induced electromagnetic force in the loop?

Show full solution:

Electromagnetism

A flexible rectangular coil of wire with 150 loops is stretched in such a way that its dimension changes from 5 cm x 8 cm to 7 cm x 11 cm in 0.15 s in a magnetic field of 25T that is 30 degrees relative to the plane of the coil.

a. Calculate the induced EMF

b. How much energy in joules was dissipated in the circuit if the total resistance is 100Ω?

Show full solution:

Electromagnetism

What force is there between two charges, each with 2.0 x 10^{-6} C if they are 0.03 m apart?

Electromagnetism

Two small sphere spaced 20.0 cm apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57x10^{-21} N?

Electromagnetism

What is the third harmonic of a pitch with a base frequency of 314 Hz?

Electromagnetism

the cross-sectional area of an adjustable single loop is reduced from 1.0m^2 to 0.50m^2 in 0.10s. What is the average emf that is induced in this coil if it is in a region where B=2.0 T upward, and the coil's plane is perpendicular to B?