Physics, 21.05.2020 23:19 shawnaelvaughns
A piece of wire having a resistance R is cut into five equal parts. (i) How will the resistance of each part of the wire compare with the original resistance? (ii) If the five parts of the wire are placed in parallel, how will the resistance of the combination compare with the resistance of the original wire? What w ill be ratio of resistance in series to that of parallel?
Answers: 1
Physics, 22.06.2019 15:30, Mhayslett12
To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin. answer in one word. part bfind e(r), the magnitude of the electric field at distance r from the point charge q. express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q. express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r
Answers: 2
Physics, 22.06.2019 16:00, Andrebutrus
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
Physics, 23.06.2019 23:00, tigistamare03
Making a water cycle model 1. add soil to a plastic cup. 2. place an ice cube on the soil. 3. use plastic wrap to seal the top of the cup. 4. place the cup in a location with direct sunlight. which statement is the best comparison between earth’s water cycle and the model described? a) the water evaporates down into the model’s soil, instead of into the air. b) the ice cube in the model represents condensation in earth’s water cycle. c) when the ice melts, it will model infiltration as it absorbs into the soil. d) condensation occurs in the model’s soil, like it occurs in clouds for earth.
Answers: 1
A piece of wire having a resistance R is cut into five equal parts. (i) How will the resistance of e...
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