For the circuit shown in Figure 6.2.1, the applied voltage is v s = 6 V and the resistance is R = 10. Determine the current and the power that must be produced by the power supply. Figure 6.2.2 shows...

For the circuit shown in Figure 6.2.1, the applied voltage is v_s
= 6 V and the resistance is R = 10. Determine the current and the power that must be produced by the power supply.

Figure 6.2.2 shows a circuit for summing the voltages v₁
and v₂
to produce v₃. Derive the expression for v₃
as a function of v₁
and v₂, for the case where R₁
= R₂
= 10 , and R₃
= 20.