WorksheetsOhm's Law and Circuits
Total questions: 23
Worksheet time: 16mins
What is the current of a series circuit with a total resistance of 10 ohms and a voltage of 110 V
0.09
11.0
1100.0
10.0
What would you need to do to the voltage if you wanted to increase the current in a series circuit?
Increase
Greater
Decrease
Smaller
What is the unit of current?
volts (V)
amps (A)
ohms (Ω)
joules (J)
What is the difference in finding total resistance in a series circuit vs. in a Parallel circuit?
No Difference
For series use inverse equation, for parallel add resistances up.
For series add up resistances, for parallel add up resistances
For series add up resistances, for parallel use inverse equation
What is the current of a series circuit with values of 5, 9, 17 ohms, with a battery of 12V
0.3871
3870.0
372.0
4.4395
A parallel circuit has 6 ohm, 10 ohm, 12 ohm and 15 ohm resistors and a voltage of 10V, what is the current?
answer given in nearest whole number
1.0
2.0
3.0
4.0
If a series circuit of three bulbs is rearranged into a parallel circuit, what will happen to the brightness of three bulbs
The bulbs will turn off due to an incomplete supply of electricity.
All three bulbs will have the same amount of luminosity once rearranged into a parallel circuit but will be dimmer than in parallel.
All three bulbs will have the same amount of luminosity once rearranged into a parallel circuit but will be brighter than in parallel.
The bulb next to the battery will be brightest and each bulb will be dimmer than the one before.
What does R stand for?
Revolution
Rictor Scale
Resistance
Right
You are given a parallel circuit with three identical resistors of 23 ohms, and two 11V batteries. What is the power of the whole circuit?
63.13
15.78261
11.0
7.66667
Johnny and Sam are working on a physics lab together. In their lab, they are to create both a series circuit and a parallel circuit using identical materials. Johnny constructs the series circuit while Sam makes the parallel circuit. After observing the two circuits, Sam argues that his circuit contains more resistance than Johnny's circuit. Johnny says that Sam is wrong, and that his circuit has more resistance. Who is correct?
Sam is correct, the parallel circuit has more paths for the electricity to travel, making the resistance greater.
Sam is correct, the parallel circuit's light(s) is brighter, meaning there is more resistance.
Johnny is correct, parallel circuits have LESS resistance because the current is greater.
Johnny is correct, parallel circuits have LESS resistance because their resistors add inversely, while the resistors in series circuits add normally.
What is the first step to solving for a Parallel circuit
Add the currents to find the total currents
Find the current through each branch I= v/r for each branch
Use the one current to find the voltage drop across each resistor
Check by adding resistors using inverse law
What is the voltage needed to run a 9.2 ohm toaster on a 5.5 amps?
9.2 V
5.06 V
34.14 V
50.6 V
If a circuit is pulling 40 ohms at 200 volts, what is the power of the circuit?
5.0
1000.0
200.0
40.0
For which circuit do you have to inverse the resistors to find the equivalent resistance?
series circuit
parallel circuit
both series and parallel circuits
neither series and parallel circuits
What is the voltage drop across one 40 ohm resistor in parallel with 2 other 40 ohm resistors if the battery on the circuit is 69 volts.
69.0
40.0
1.725
5.175
