2023

Physics Current Electricity Level: High School

Some light bulbs are connected in parallel to a 120 V source as shown in the figure at “click here” . Each bulb dissipates an average power of 60 W. The circuit has a fuse F that burns out when the current in the circuit exceeds 9A . Determine the largest number of bulbs ,which can be used in the circuit without burning out the fuse .

a) 9

b) 17

c) 25

d) 34

e) 36