200+ câu Trắc nghiệm Tiếng Anh chuyên ngành kỹ thuật điện có đáp án - Phần 4

The device which takes electrical energy is known as the electric load

The source which generate electrical energy is known as the electric load

a dam is considered as a load

a transformer being separed from the power network is considered as a load

supports

increases

remains

reduces

Electric Circuit

Electric Current

Potential Difference

Volt-meter

Counter

Electric power plante

An winding

An electrical circuit

Real power to reactive power

Real power to apparent power

Reactive power to apparent power

Reactive power to real power

The active power equals the product of the voltage, the current, and power factor.

P equals to the product of V, I, and cos.

P equals the product of V, I, and cos.

P equals the product of V, I, c, o, s, and .

Nichrome

Tungsten

Copper

Carbon

The active power equals the product of the voltage, the current, and power factor.

P equals to the product of V, I, and cos.

P equals the product of V, I, and cos.

P equals the product of V, I, c, o, s, and .

Voltage two plus Voltage three is equal to Voltage three

V one equals V two plus V three

V two plus V three is equal to V one

V two plus V three equal to V one

an electromanet

a current

a magnetic field (từ trường)

an electric field

The voltage across a capacitor leads the current by 90°.

The voltage across a capacitor lags the current by 90

The voltage across a capacitor in phase the current

All 3 statement above are true.

smaller resistance has smaller conductance

potential difference across each is same

large current flows in larger resistor

current is same in both

250J

150J

1.5kJ

25J

I1+I2=I3

I1+I2=I3

I1+I2=I3

I3=I1+I2

Transformer

Circuit breaker

Generator

Feeder

Current transformers

Voltage transformers

Isolators

Circuit breakers