Post Utme Physics Past Questions and Answers

Question 356:

Two lamps rated 60 W and 240 V each areconnected in series. What is the total power dissipated in both?

A. 30 W
B. 60 W
C. 90 W
D. 120W

Question 357:

Three resistors connected in parallel have a potential difference of 24 V applied across the combination. What is the current in each resistor?

A. 8A
B. 3A
C. 24A
D. 4A

Question 358:

If PHCN charges 25 k per kWh, find the cost of operating for 36 hours a lamp requiring 1.5 A on a 240 V line.

A. N324
B. N32.4.
C. N3.24
D. NO.324

Question 359:

In order to convert a galvanometer to a voltmeter

A. Alow resistance shunt is connected in parallel
B. A low resistance shunt is connected in series
C. A high resistance multiplier is connected in parallel
D. Ahigh resistance multiplier is connected in
series

Question 360:

Which of the following is not applicable to an ac generator?

A. Armature
B. Commutato
C. Field magnet
D. Slip rings