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Problem 7 of 7

Power of a Bridging VCCS

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A voltage-controlled current source forms the bridge. Its current is 0.4 vx0.4\,v_x mA, where vxv_x is the voltage across R3R_3 in volts. Find the power absorbed by the dependent source, in milliwatts.

Vs​21 VR1​2.2 kΩR3​3.3 kΩ+−vx​R2​1.5 kΩR4​6.8 kΩ0.4 vx (mA)AB
mW

Answers within 2% are accepted. Units with SI prefixes work too, like 0.003 A or 3 mA. Use a minus sign for negative values.

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