Five resistors, each 10 Ω, are connected in parallel to a voltage source. What is the equivalent resistance of the circuit?

Group of answer choices

20 Ω

5 Ω

2 Ω

50 Ω

Flag question: Question 3
Question 35 pts
Five resistors, each 10 Ω, are connected in parallel to a voltage source.

The current at each branch is measured to be 600 mA. What is the potential difference supplied by the voltage source?

Group of answer choices

12 V

6 V

0.3 V

3 V

Flag question: Question 4
Question 45 pts
A 2.5 kΩ resistor and a 20.0 Ω resistor are connected to a 9.0 V source in parallel. What is the total current in the circuit?
Group of answer choices

3.6 mA

450 mA

20 A

180 A

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Explanation:

:)

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

the bal will not change its velocity.