Electrical Power and Circuits

What is the total resistance (RT) across this circuit?

• 3 kΩ
• 10 kΩ
• 13 kΩ
• 16 kΩ

As the resistance of a circuit increases, the current will...

• increase
• decrease
• stay the same

The current going through the 45 ohm resistor is 

• 0.05 amps
• 0.2 amps
• 0.1 amps
• 5 amps

Pick the correct sentence.

• This circuit will work because it is a closed circuit.
• Energy will freely flow in this circuit.
• This circuit will not work because there is no energy source.
• This circuit will not work because there is no switch.

Tags

NGSS.HS-PS2-5

What is another Equation for Power?

• Power = Potential Difference x Current (P=IV)

• Power = Potential Difference / Current (P=V/I)

• Power = Current / Potential Difference (P=I/V)

What is the Equation for Charge Flow?

• Charge Flow = Current x Time (Q=It)

• Charge Flow = Current / Time (Q=I/t)

• Charge Flow = Time / Current (Q=t/I)

Which are the Equations for Power?

• Power = Energy Transferred / Time (P=E/t)

• Power = Work Done / Time (P=W/t)

• Power = Energy Transferred x Time (P=Et)

• Power = Work Done x Time (P=Wt)

what is the power of a lamp whose current is 6 A and the voltage across it is 120 V?

• 120 W
• 720 W
• 16 W
• 10 W

What is a kilo equal to?

• 100
• 1,000
• 100,000
• 1,000,000

What does the Greek letter Ω,  (i.e. Omega) represent?

• amps
• volts
• watts
• ohms