An active digital line in case of multiplexed buses has three states. high & low when controlled, and tristated when not controlled or when it is free to be used by other controller. this state where in it's level is not determinable or when it is floating is called tristate.
In 0.025 W, there are A. 25 kW B. 0.00025 mW C. 2,500 µW D. 25 mW
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is A. overheated B. shorted C. open D. reversed
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat? A. 33 B. 330 C. both resistors D. neither resistor
A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is A. 132 mW B. 13.2 mW C. 22.6 mW D. 226 mW
A 75 load uses 2 W of power. The output voltage of the power supply is approximately A. 120 V B. 1.2 V C. 12 V D. 6 V
When the current through a 12 k resistor is 8 mA, the power is A. 7.68 mW B. 768 mW C. 7.68 W D. 76.8 W
How much continuous current can be drawn from a 60 Ah battery for 14 h? A. 42.8 A B. 428 A C. 4.28 A D. 4.2 A
The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be A. 2 W B. 1 W C. 5 W D. 0.5 W
A half-watt is equal to how many milliwatts? A. 5,000 mW B. 5 mW C. 500 mW D. 50 mW
Three hundred joules of energy are consumed in 15 s. The power is A. 2,000 W B. 2 W C. 20 W D. 200 W
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