Question

How many strings of length 5 formed using the letters abcdefg without repetitions that begin with the letter f and do not end with eb in that order?

a. 30
b. 24
c. 18
d. 12

Answer 1

If the charge is increased to +20 nC, there would be 20 electric-field lines coming out of it.

Step-by-step explanation:

Answer:

If five electric-field lines come out of a +5 nC charge, it means that each line represents 1 nC of charge. Therefore, if the charge is increased to +20 nC, there would be 20 electric-field lines coming out of it. So, the correct answer is d. 20 field lines.