Resistors and Ohm's Law Video Lessons

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Problem: From lowest to highest, rank the current in the main branch of the circuit – that is – rank the current passing through point j. a. A, B, C b. A, C, B c. B, A, C d. B, C, A e. C, A, B f. C, B, A

FREE Expert Solution

Ohm's law:

i=VR

The bulbs act as resistors.

Assuming that each bulb has a resistance of R, we can get the equivalent resistance for the different cases from where we can get current. 

Remember,

Equivalent resistance for resistors in parallel:

1Req=1R1+1R2+...+1Rn

Equivalent resistance for resistors in series:

Req=R1+R2+...+Rn

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Problem Details

From lowest to highest, rank the current in the main branch of the circuit – that is – rank the current passing through point j. 

a. A, B, C 

b. A, C, B 

c. B, A, C 

d. B, C, A 

e. C, A, B 

f. C, B, A

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