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WorksheetsMVCC-TechChallenge_Parallel,OhmsLaw,PowerLaw-02
Total questions: 25
Worksheet time: 21mins
What happens to the bottom lamp if the top lamp breaks?
The bottom lamp gets dimmer
The bottom lamp gets brighter
The bottom lamp turns off
The bottom lamp stays the same brightness
Which of these circuits are parallel circuits?
X and Y only
X and Z only
Y and Z only
all of them
Which of these statements is not true?
The currents at Q and R add up to give the
current at S.
The current is the same at P and S.
The current is the same at Q and R.
The current is the same at P and Q.
This is an example of a -------- circuit.
Series
Parallel
Combination
Solve for the Total Resistance of the load.
10.3 k-ohms
1.7 k-ohms
1.1 k-ohms
978 ohms
There are TWO 1.5V batteries pictured. What is the Voltage supplied to each of the three branches?
6 volts
4.5 volts
3 volts
1.5 volts
1 volt
If another bulb is added in a parallel circuit, each bulb would
stay the same
get dimmer
Solve for the current flowing through R2.
10.3 ma
28.3 ma
16.4 ma
8.3 ma
What is measured in Watts (W)?
resistance (R)
Power (P)
Current (I)
Voltage (V)
What is measured in Amps (A)?
resistance (R)
Power (P)
Current (I)
Voltage (V)
Ω What is measured in Ohms (Ω)
resistance (R)
Power (P)
Current (I)
Voltage (V)
What is measured in Volts (V)?
resistance (R)
Power (P)
Current (I)
Voltage (V)
What equation would you use to solve for total resistance of this parallel circuit?
R1 + R2 + R3 = RT
(1/R1) + (1/R2) + ( 1/R3)=RT
[(1/R1) + (1/R2) + ( 1/R3)]= 1/(answer)=RT
Is the current the same across each of these branches?
yes
no
Which formula would you use to solve for voltage?
V= I x R
V = I/R
V = R/I
Total Voltage = 18 V
Total Resistance = 40 Ohms
Total Current=?
2.22 A
0.45 A
7.20 A
3.5 A
Power = 100 W
Voltage = 30 V
Current = ?
3000 A
300 A
3.333 A
0.3 A
How do you calculate total resistance in a parallel circuit?
R1 + R2 + R3
R1 - R2 - R3
1/R1 +1/R2 + 1/R3 = 1/RT
R1 = R2 = R3
If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?
2.1 Amps
2.4 Amps
1.71 Amps
15 Amps
