CBT 11 Passage 5

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

sudo

Señor Member
10+ Year Member
Joined
Sep 12, 2011
Messages
431
Reaction score
34
I'm a little confused about the wording of this question:
5SvCW.png


Here's the diagram:
m6hAl.png


I used the formula: V=IR to solve the problem, but since the question stated to "assume that the resistance in the circuit is negligible compared to that of the lightbulb," I just did V=I, leading to me to answer choice C.

What are they trying say by "assume that the resistance in the circuit is negligible compared to that of the lightbulb?" :mad:

Members don't see this ad.
 
I forgot that the circuit, itself, can have some resistance (though it's negligible), so the question was reiterating that the resistance in the circuit, compared to that of the light bulb, is negligible...which should be assumed from usual, practical application.:idea:
 
They're saying to assume that the only resistance in the circuit is due to the lightbulb; that all other sources of resistance (the wire) are negligible. This is the basic assumption with all circuit questions unless stated otherwise.
 
Top