WAEC Past Questions and Answers - Page 3517

17,581.

One of the factors responsible for low agricultural production in West Africa is

A.

Inadequate labour

B.

Shortage of lands

C.

Inadequate implements

D.

Inadequate research

Correct answer is C

No explanation has been provided for this answer.

17,582.

The economic goals of public corporation is to

A.

Maximize profits

B.

Expand assets

C.

Minimize cost

D.

Provide essential services

Correct answer is D

No explanation has been provided for this answer.

17,583.

Calculate the energy stored in a 20\(\mu F\) capacitor. If the p.d between the plates is 40V

A.

3.2 x 10-2J

B.

1.6 x 10-2J

C.

8.0 x 10-4J

D.

4.0 x 10-4J

Correct answer is B

W = \(\frac{cv^2}{2} = \frac{20 \times 10^{-6} \times 40^{2}}{2}\)

= 1.6 x 10-2J

17,584.

The quantity of electric charge stored in a capacitor is measured in

A.

farad

B.

ampere

C.

coulomb

D.

volt

Correct answer is C

No explanation has been provided for this answer.

17,585.

The shares which do not carry any fixed rate of dividend are known as

A.

Debenture

B.

Cumulative preference shares

C.

Ordinary shares

D.

Participating preferencial shares

Correct answer is C

No explanation has been provided for this answer.