The charge of an electron is given by:
1e = - 1.6 × 10-19 C
1. The charge earned by one electron is e = -1.6×10-19 C. The number of electrons necessary to produce a charge of -1.0 C is
E) none of the above
2. The force of attraction between a -40.0 μC and + 108 μC charge is 4.00 N. What is the separation between these two charges?
A) 1.13 m
C) 3.12 m
D) 2.49 m
E) 3.67 m
3. An atomic nucleus has a charge of +40e An electron is 10-9 m from the nucleus. What is the force on the electron?
A) 2.9 nN
B) 9.2 nN
C) 3.7 nN
D) 1000 C
E) 6.8 nN
4. A force of 10 N acts on a charge of 5.0 μC when it is placed in a uniform electric field. What is the magnitude of this electric field?
A) 1.0 MN/C
C) 0.50 MN/C
D) 1000 MN/C
E) 2.0 MN/C
5. Fig. 15-8 shows electric field lines near two electric point charges. If Q1 = -1 μC, what is the value of Q2?
A) -1 μC
C) +1 μC
D) -2 μC
E) 2 μC
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Based on our data, we think this problem is relevant for Professor Jerousek's class at UCF.