Question

In the circuit shown in Figure A-4, which of the following resistors could be placed in parallel with R1 to make the total power supply current exactly 50 mA?

A. 1 kΩ

B. 545 Ω

C. 500 Ω

D. 240 Ω

R1 Branch A 1 kΩ R2 R3 B 500 Ω 500 Ω Branch --AAA R4 1 k2 R5 R6 Branch C 12 V

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