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单选题 The circuit element used to model the current-resisting behavior of a material is
学科：默认课程
时间：2026-01-07 12:15:03
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题目1单选题
It is conventional to take the current flow as the movement ofA. negative chargesB. positive chargesC. any chargeD. protons
题目2单选题
Electric current is the time rate of charge, measured inA. wattsB. voltsC. joulesD. amperes
题目3单选题
The energy required to move a unit charge through an element isA. currentB. powerC. voltageD. potential
题目4单选题
The plus (+) and minus (-) signs in an electric circuit diagram are used to defineA. voltage polarityB. current directionC. power flowD. absorbed power
题目5单选题
According to the passive sign convention, if the power has a plus sign, power is by the elementA. suppliedB. absorbedC. generatedD. transferred
题目6单选题
The circuit element used to model the current-resisting behavior of a material isA. the capacitorB. the inductorC. the resistorD. the dependent source
题目7单选题
Ohm's Law states that the voltage across a resistor is the current flowing through the resistorA. equal toB. directly proportional toC. inversely proportional toD. different from
题目8单选题
A resistor whose resistances vary with its current is known asA. a linear resistorB. a constant resistorC. a nonlinear resistorD. a time-varying resistor
题目9单选题
is a circuit element with resistance approaching infinityA. An open circuitB. A short circuitC. A resistive circuitD. An inductive circuit
题目10单选题
An electric heater draws 10 A from a 120V line. The resistance of the heater isA. 1200 ΩB. 120 ΩC. 12 ΩD. 1.2 Ω
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