Electric Charge Video Lessons

Concept

# Problem: A rod that has been charged to + 12.0 nC touches a metal sphere. Afterward, the rod's charge is + 7.0 nC.A. What kind of charged particle was transferred between the rod and the sphere? Proton or electronB. In which direction was the charged particle transferred between rod and sphere? That is, did it move from the rod to the sphere or from the sphere to the rod?C. How many charged particles were transferred?

###### FREE Expert Solution

A.

The particle that transfers charge is electrons.

This is because metals have many free electrons.

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###### Problem Details

A rod that has been charged to + 12.0 nC touches a metal sphere. Afterward, the rod's charge is + 7.0 nC.
A. What kind of charged particle was transferred between the rod and the sphere? Proton or electron

B. In which direction was the charged particle transferred between rod and sphere? That is, did it move from the rod to the sphere or from the sphere to the rod?

C. How many charged particles were transferred?