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Series-Parallel Circuits

Q1: The power dissipated by R4 is 211 mW.

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A True

B False

ANS:A - True

Current over R2=185v /4.5k ohm=41.1 mA.
Voltage across R2=4k * 41.1 mA=164.4V.
Voltage across R3 = 185 - 164.4=20.6V.
Power over R3=20.6V*(20.6V/1kohm) = 424.6mW.



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