Electric Field
A helium nucleus is located between the plates of a parallel-plate capacitor as shown. The nucleus has a charge of+2e and a mass of 6.6x10-27kg. What is the magnitude of the electric field such that the electric force exactly balances the weight of the helium nucleus so that it remains stationary?
Homework Answers
If force due to electric field = weight then the nucleusis balanced
i.e., E q =mg
E = mg / q
= ( 6.6x10-27kg) ( 9.8 m / s 2 ) / ( 2e )
= ( 6.6x10-27kg) ( 9.8 m / s 2 ) / ( 2*1.6 * 10-19 C )
= 20.2125 *10-8 N / C
2. The electric field between the square plates of a parallel-plate capacitor has magnitude E. The...
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electric field 7*10^4 V/m exist between the plates of a circular
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The electric field between the plates of a parallel-plate capacitor is horizontal, uniform and has a magnitude E. A small object with a charge of 2.10 μC is attached to the string. Assume that the tension in the string is 0.350 N, and the angle it makes with the vertical is 15 (b) What is the magnitude of the electric field? N/C search
Two large, parallel, metal plates are charged so as to create a
uniform electric field between them. The plates are squares and
each edge is 1.0 meter long. One plate is given a net electrical
charge of +0.17708 nano-Coulomb and it is located to the left of
the center of the space between the plates. The other plate is
charged oppositely to -0.17708 nano-Coulomb and it is located to
the right of center. The plates are separated by some distance...
An
electric field 7*10^4 V/m exist between the plates of a circular
parallel-plate capacitor that has a plate separation of 3mm
5 -1 points Tipler6 24.P040 An electric field of 7. × 104 V/m exists between the plates of a circular parallel-plate capacitor that has a plate separation of 3 mm. (a) What is the voltage across the capacitor? (b) What plate radius is required if the stored charge is 10 ycC? eBook
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