Brightness of Bulbs 1
Compare the brightness of the bulbs in the diagram (assuming they have the same resistance)
Compare the brightness of the bulbs in the diagram (assuming they have the same resistance)
A) B < C
A) B < C
B) B = C
B) B = C
C) B > C
C) B > C
Solution: B = C. B and C are in series, so they must have the same current. One formula for power is P = I^2*R, so the same current with equal resistance implies equal power and equal brightness.
Solution: B = C. B and C are in series, so they must have the same current. One formula for power is P = I^2*R, so the same current with equal resistance implies equal power and equal brightness.
