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Linear Circuits I

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Problem 48 of 132

Bridge With a Dependent Current Source

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A voltage-controlled current source forms the bridge. Its current is 0.9 vx0.9\,v_x milliamperes, where vxv_x is the voltage across R3R_3 in volts. Find vBv_B (relative to the bottom wire), in volts.

Vs​22 VR1​3.3 kΩR3​10 kΩ+−vx​R2​6.8 kΩR4​1.5 kΩ0.9 vx (mA)AB
V

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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