Polarization
Local action
Formation of hydrogen electrode
Increase in the resistance of the cell
Generation of less current by the cell
Correct answer is B
No explanation has been provided for this answer.
Calculate the rate at which energy is used up in the circuit illustrated by the diagram
0 W
2 W
4 W
8 W
16 W
Correct answer is C
\(R = \frac{R_1 X R_2}{R_1 + R_2}\)
= 1
\(E = I^2R = 2^2 x 1 =4W\)
The cap will be positively charged and the negatively charged leaves will diverge
The cap will be negatively charged and the positively charged leaves will diverge
The cap and the leaves will be positively charged
The cap and the leaves will be negatively charged
The leaves will not diverge because the cap has been earthed
Correct answer is C
No explanation has been provided for this answer.
340.0ms-1
33Oms-1
170ms-1
85.0ms-1
42.5ms-1
Correct answer is A
L = λ/4; λ= 4 = 4m
v = fλ = 85 x 4 = 340ms-1
I and II only
I and III only
II and III only
II and IV only
III and IV only
Correct answer is D
No explanation has been provided for this answer.
WAEC Subjects
Aptitude Tests