Aparallel-plate capacitor with circular plates of radius 35 mm is being discharged by a current of 3.5 a. at what radius (a) inside and (b) outside the capacitor gap is the magnitude of the induced magnetic field equal to 80% of its maximum value? (c) what is that maximum value?

Explanation:

Given that,

Radius R= 35 mm

Current = 3.5 A

The magnetic field B is proportional to the r.

Magnetic field is maximum ,when r = R

(a). We need to calculate the radius inside the capacitor

The radius inside the capacitor is 28 mm.

(b). We need to calculate the radius outside the capacitor

The radius outside the capacitor is 43.75 mm.

(c). We need to calculate the maximum value

Using formula of magnetic field

Put the value into the formula

The maximum value of magnetic field is .

Hence, This is the required solution.

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gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.