Kirchhoff's rules for circuits
Grade 11 Science Worksheet
Circle the best answer, or write your answer on the line.
A 24 V battery drives one loop with three resistors. Two of them drop 10 V and 6.5 V. What does the third drop, to 0.01 V, Jun?
Read this first
Use this
Circuit schematic (example data): one loop.
In the series schematic, going through the battery from − to +, what is the voltage change, Kira?
- A drop of 12 V
- No change
- A rise of 12 V
In the series schematic, crossing the 4 Ω resistor in the current's direction, what is the voltage change, Luz?
Use the picture in question 2.
- A drop of 8 V
- A drop of 2 V
- A rise of 8 V
Which loop equation fits the series schematic, Milo?
Use the picture in question 2.
- −12 − 4 − 8 = 0
- +12 + 4 + 8 = 0
- +12 − 4 − 8 = 0
A 9 V battery is connected across two parallel branches. What voltage does each branch get, Noah?
- 4.5 V each
- 9 V each
- 18 V each
Across a 9 V battery, branch 1 has 3 Ω and branch 2 has 9 Ω. What current does each branch carry, Pia?
- 1.5 A and 0.5 A
- 1 A and 3 A
- 3 A and 1 A
Two parallel branches carry 3 A and 1 A. What current leaves the battery, Ren?
- 2 A
- 3 A
- 4 A
Use this
Circuit schematic (example data): one loop.
In the series schematic, ammeter X reads 2 A before the 2 Ω resistor. Why does ammeter Y after it also read 2 A, Tala?
- Ammeter Y is broken; it should read less
- The resistor used up half, then the battery added it back
- A resistor does not use up current
In the series schematic, why do the voltmeters read 4 V and 8 V, Zee?
Use the picture in question 8.
- The 2 Ω resistor gets more current
- Each drop is IR, and the drops add to 12 V
- Each resistor drops half the battery voltage
On a 12 V series loop, a student's voltmeters read 4 V and 6 V across the only two resistors. What does that suggest, Ari?
- A misreading: the drops must add to 12 V
- The first resistor used up some current
- Nothing; drops need not add to the battery