If you have a steady-state electrical supply budget (which you cannot exceed) of 1 W to lift a 400g mass, which voltage

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If You Have A Steady State Electrical Supply Budget Which You Cannot Exceed Of 1 W To Lift A 400g Mass Which Voltage 1 (27.38 KiB) Viewed 25 times

If you have a steady-state electrical supply budget (which you cannot exceed) of 1 W to lift a 400g mass, which voltage setting from the following do you choose? Supply Voltage (V) Mass (g) Peak Electical Power (W) Peak Mechanical Power (W) Steady-state Mechancial Power (W) Steady-state Electrical Power (W) Steady-state Efficency (unitless) 5 400 1.4 0.3 0.25 0.81 0.31 6.5 400 3 3 0.53 0.37 1.05 0.35 8 400 2.7 0.5 0.46 1.43 0.32 8 600 3 3 1 0.65 1.9 0.34 a. 6.5 V O b.5 V O c.8V O d. None of them