FCC T5D - 电路与电学原理

#T5D01🔗

What formula is used to calculate current in a circuit?

什么公式用于计算电路中的电流？

I = E x R

我=E×R

I = E / R

✓ 正确答案

I = E² x R

I = E² / R

I = E - R

#T5D02🔗

What formula is used to calculate voltage in a circuit?

计算电路中的电压用什么公式？

E = I x R

✓ 正确答案

E = I / R

E = I² x R

E = I² / R

E = I - R

#T5D03🔗

What formula is used to calculate resistance in a circuit?

什么公式用于计算电路中的电阻？

R = E x I

R = E / I

✓ 正确答案

R = E + I

R = E - I

#T5D04🔗

What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

当连接到 90 伏特时流过 3 安培电流的电路的电阻是多少？

3 ohms

3欧姆

30 ohms

30欧姆

✓ 正确答案

1/30 ohm

1/30欧姆

270 ohms

270 欧姆

#T5D05🔗

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

施加电压为 12 伏且电流为 1.5 安培的电路的电阻是多少？

18 ohms

18 欧姆

0.125 ohms

0.125 欧姆

8 ohms

8欧姆

✓ 正确答案

13.5 ohms

13.5 欧姆

#T5D06🔗

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

从 12 伏电源汲取 4 安培电流的电路的电阻是多少？

3 ohms

3欧姆

✓ 正确答案

16 ohms

16 欧姆

48 ohms

48 欧姆

8 ohms

8欧姆

#T5D07🔗

What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

施加电压为 120 伏且电阻为 80 欧姆的电路中的电流是多少？

9600 amperes

9600安培

200 amperes

200安培

0.667 amperes

0.667 安培

1 . 5 amperes

1 . 5安培

✓ 正确答案

#T5D08🔗

What is the current through a 100-ohm resistor connected across 200 volts?

通过连接在 200 伏电压下的 100 欧姆电阻的电流是多少？

20,000 amperes

20,000 安培

0.5 amperes

0.5安培

2 amperes

2安培

✓ 正确答案

100 amperes

100安培

#T5D09🔗

What is the current through a 24-ohm resistor connected across 240 volts?

通过连接在 240 伏电压下的 24 欧姆电阻的电流是多少？

2400 amperes

2400安培

0.1 amperes

0.1安培

10 amperes

10安培

✓ 正确答案

5760 amperes

5760安培

#T5D10🔗

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

如果 0.5 安培的电流流过 2 欧姆电阻，其两端电压是多少？

1 volt

1 伏

✓ 正确答案

0.25 volts

0.25 伏

2.5 volts

2.5伏

1.5 volts

1.5伏

#T5D11🔗

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

如果 1 安培的电流流过 10 欧姆的电阻器，其两端的电压是多少？

1 volt

1伏

10 volts

10伏

✓ 正确答案

11 volts

11伏

9 volts

9伏

#T5D12🔗

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

如果 2 安培的电流流过 10 欧姆的电阻器，其两端的电压是多少？

8 volts

8伏

0.2 volts

0.2伏

12 volts

12伏

20 volts

20伏

✓ 正确答案

#T5D13🔗

In which type of circuit is the current always the same through all components?

在哪种类型的电路中，流经所有元件的电流始终相同？

Series

串联

✓ 正确答案

Parallel

并联

Resonant

谐振

Branch

分支

#T5D14🔗

In which type of circuit is the voltage always the same across all components?

在哪种类型的电路中，所有元件上的电压始终相同？

Series

串联

Parallel

并联

✓ 正确答案

Resonant

谐振

Branch

分支

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FCC T5D - 电路与电学原理

小节 T5D：电路与电学原理