There are two identical batteries in series, which statement is true?( ) A: The total voltage equals the sum of the voltages of each battery. B: The total voltage equals any battery voltage. C: The total voltage equals half of one battery voltage

Ohm’s Law states that current equals voltage divided by resistance. Current increases with the increase in voltage. Current decreases with the increase in resistance.

For a neutral-unearthing system, during a bolted single line-to-ground fault, the non-fault phase voltage and the fault phase voltage are ()respectively. A: phase voltage and zero B: phase voltage and line-to-line voltage C: line-to-line voltage and phase voltage D: line-to-line voltage and zero

At __________________ should exist correct mains voltage.

In previous simulation and on-site experiment, where is the voltage difference between the source voltage and the load voltage?

FANUC control system works under a _________volts voltage.

The voltage meter and current meter on the main switchboard shows ( <br/>). A: phase voltage and phase current of generator B: line voltage and line current of generator C: line voltage and line current of crane D: line voltage and line current of shore power

In binary positive logic systems，1 is represented by the voltage, and is represented by the lower voltage level.

The<br/>common-base amplifier has _()()()__. A: voltage gain, current gain, and power gain B: voltage gain and power gain, but no current gain C: current gain and power gain, but no voltage gain D: current gain and voltage gain, but no power gain

When the input voltage to this circuit is 0.25 V, the output voltage is （     ）.[img=330x151]17a3dde427a4d5d.png[/img]