Electric Power

1.  What is the equation to solve Power in Electricity

• V=IXR
• PV=nRT
• P=VXI
  P=VXR
• none

The rate at which energy is converted from one form to another

• power
• voltage
• current
• none

Tags

NGSS.HS-PS3-3

The unit for Power is

• Joules
• Amperes
• Watts
• None

1.  One joule per second is also known as

• watt
• joule
• kilowatt
• none

A kilowatt is

• 1000 Amps
• 1000 watts
• 1000 volts
• none

What is the voltage difference in a circuit that uses 2420 W of power if 11 A of current flows into the circuit?

• 220 v
• 0.004 v
• 2431 v
• 532400 v

How much does it cost to light 6 100 W light bulbs for 6 hours if the price of electrical energy is $0.09/kWh?

• $4.00
• $6.24
• $3.24
• $5.24

The current in an appliance is 3 A and the voltage difference is 120 V. How much power is being supplied to the appliance?

• 10000 w
• 220 w
• 420 w
• 360 w

The current in an appliance is 3 A and the voltage difference is 120 V. How much power is being supplied to the appliance?

• 10000 v
• 220 v
• 420 v
• 360 v

What is the current flowing into a microwave oven that requires 700 W of power if the voltage difference is 120 V?

• 4.3A
• 6.3 A
• 5.83 A
• none