Lesson test: Series, parallel, and Kirchhoff's laws

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Series, parallel, and Kirchhoff's laws

1.[2p]
Kirchhoff's current law says that at any junction

the total current flowing in equals the total flowing out

Correct

the voltage rises equal the voltage drops

The answer is: the total current flowing in equals the total flowing out

the resistance is zero

The answer is: the total current flowing in equals the total flowing out

the current is always zero

The answer is: the total current flowing in equals the total flowing out

2.[2p]
Kirchhoff's voltage law, that the voltages around any loop sum to zero, is a statement of

energy conservation per unit charge

Correct

charge conservation

The answer is: energy conservation per unit charge

Ohm's law

The answer is: energy conservation per unit charge

power dissipation

The answer is: energy conservation per unit charge

3.[2p]
Two resistors of 1000 and 2000 ohms are in series across 9 V. What is the current, in milliamps?

CorrectNot quite: 3

4.[2p]
In that same series circuit, what is the voltage across the 2000 ohm resistor, in volts?

CorrectNot quite: 6

5.[2p]
Two resistors in parallel always give a combined resistance that is

smaller than the smaller of the two

Correct

larger than the larger of the two

The answer is: smaller than the smaller of the two

equal to their sum

The answer is: smaller than the smaller of the two

equal to their average

The answer is: smaller than the smaller of the two

6.[3p]
A 200 ohm and a 300 ohm resistor are in parallel. What is their combined resistance, in ohms?

CorrectNot quite: 120

7.[1p]
In a series circuit the same current flows through every component, while in a parallel circuit the same voltage sits across every component.

True

Correct

False

The answer is: True

1.[2p] Kirchhoff's current law says that at any junction

2.[2p] Kirchhoff's voltage law, that the voltages around any loop sum to zero, is a statement of

3.[2p] Two resistors of 1000 and 2000 ohms are in series across 9 V. What is the current, in milliamps?

4.[2p] In that same series circuit, what is the voltage across the 2000 ohm resistor, in volts?

5.[2p] Two resistors in parallel always give a combined resistance that is

6.[3p] A 200 ohm and a 300 ohm resistor are in parallel. What is their combined resistance, in ohms?

7.[1p] In a series circuit the same current flows through every component, while in a parallel circuit the same voltage sits across every component.

1.[2p]
Kirchhoff's current law says that at any junction

2.[2p]
Kirchhoff's voltage law, that the voltages around any loop sum to zero, is a statement of

3.[2p]
Two resistors of 1000 and 2000 ohms are in series across 9 V. What is the current, in milliamps?

4.[2p]
In that same series circuit, what is the voltage across the 2000 ohm resistor, in volts?

5.[2p]
Two resistors in parallel always give a combined resistance that is

6.[3p]
A 200 ohm and a 300 ohm resistor are in parallel. What is their combined resistance, in ohms?

7.[1p]
In a series circuit the same current flows through every component, while in a parallel circuit the same voltage sits across every component.