omarwehbe18 omarwehbe18

14-04-2021
Advanced Placement (AP)

contestada

A 120 V lamp dimming circuit is controlled by a rheatat and and protected from excessive current by a 2 amp fuse. What minimum resistance value can the rheostat be set at,without blowing the fuse. Assume a a lamp resistance of 15ohms.

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SAMEELEE SAMEELEE

14-04-2021

Answer:

120/2-15=45 ohms of resistance

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