2.5μC
10.0μC
20.0μC
50.0μC
Correct answer is B
Q = cv
= 2 x 10-6 x 5
= 10 x 10-6C
= 10.0μC
1.5 x 10-4m2
1.0 x 10-4m2
2.7 x 10-5m2
7.3 x 10-6m2
Correct answer is B
Resistivity = Resiatance x Arealength
1.6 x 10-6 = 15×Area0.27
Area = 1.0 x 10-4m2
Which of the following factors has no effect on the e.m.f. of a primary cell?
temperature
size of the cell
nature of the plate
nature of the electrolyte
Correct answer is B
No explanation has been provided for this answer.
When an ebolite rod is rubbed with fur, it has
no charge at all
a negative charge
a positive charge
negative and positive charges
Correct answer is B
No explanation has been provided for this answer.
1.6 x 10-11N
1.6 x 10-14N
1.6 x 10-16N
1.0 x 10-16N
Correct answer is A
F = EQ
1.6 x 10-19 x 108
= 1.6 x 10-11N