Quiz 2 & 3-For Physies I1, Fall 18 Sec I. An electron with acharge value of 1.6
ID: 1580828 • Letter: Q
Question
Quiz 2 & 3-For Physies I1, Fall 18 Sec I. An electron with acharge value of 1.6 × 10 aC.moving 400 N/C a)2.3 × 10-2) N MCQ's What force b) 19 x 10 N d)4.9 k 10-N near the bottom of the cloud. These charges are separated by about 2.0km What is the there may be an electric charge of +40 C near the top of the cloud and-4C orce between these two sets of charges? ( 8.99·10-Nie) 2. In a t a) 3.6 × 10" N b) 3.6 x 10 N c) 3.6 × 10° N d)3.6× 10, N is the electric field midway between the two charges?899 × 10N a)40.5 × 10, NO b)20.3 × 10, NO c)1O.I x 10" N/C d) zero 3. Two point charges each have a value of 30.0 mC and are separated by a distance of 4.,00 cm. WhatExplanation / Answer
1.
We know that force on a point charge kept in an external electric field is
F=qE
F=1.6*10-19*400
F=6.4*10-17N
2. Force between two point charges separated by a distance r is
F= kq1q2/r 2
F=9*109*1600/4000000
F=3600000N
3. It will be zero, as the charges are same so it will cancel each other's electric field and net field will be zero.
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