A label on one of the office computers includes this information: 230 V, 0.25 kW. a. State the equation linking power, current and voltage. b. Use the information on the label to calculate the current in the computer. c. Fuses are available with values of 1 A, 3 A, 10 A and 13 A. Suggest the most suitable fuse value for the computer. Give a reason for your answer.
Answers
Answer:
.
Explanation:
(a) V = I × R
(b)230V= I x 250W
I= 230/250=0.93
(c) 1A fuse is a more appropriate option as it is the closest higher value comparing to the current.
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Given:
The voltage reading of the computer = 230 V
Power reading of the computer = 0.25 kW
To find:
a. State the equation linking power, current, and voltage.
b. Use the information on the label to calculate the current in the computer.
c. Fuses are available with values of 1 A, 3 A, 10 A, and 13 A. Suggest the most suitable fuse value for the computer.
Solution:
a. The equation linking power, current, and voltage is P = VI
where P = power, V = Voltage, and I = Current
b. Now we will find the value of current using this equation
I = P/V
I = 250/230
I = 1.086 A
c. Fuses are available with values of 1 A, 3 A, 10 A, and 13 A
So the current value that we have is I = 1.086 A so the fuse value nearest to this one is 1A. Therefore 1A fuse should be used in the computers.