Post Utme Physics Past Questions and Answers

Question 896:

A light bulb with a potential difference of 120V across, it carries a current of 40.5A, which of the following is the power consumption of the light bulb?

A. 0.013 W
B. 80 W
C. 120 W
D. 180 W

Question 897:

An electric fan has power output of 60W. How much wok has done if the fan operate for 20s?

A. 0.5J
B. 60 J
C. 120)
D. 72000 J

Question 898:

During a thunderstorm, which of the following travel at a speed closest to 3.00 x 108 m/s

A. Wind from the storm
B. Sound from the thunder
C. Light from the lightning
D. Rain from the storm clouds

Question 899:

An athlete is training for a race by performing timed trials of sprints up a staircase. Which set of varieties most directly affect the athlete’s power?

A. Bode weight, height climbed, width of steps
B. Body weight, time spent climbing, width of steps
C. Height climbed, time spent climbing, Bode weight
D. Height climbed, time spent dimbing, width of steps

Question 900:

an appliance draws 4Amps of current when connected to 120V. what is the resistance of the appliance?

A. 0.03V
B. 30V
C. 124V
D. 480V