1. During60secondsofuse,260Cofchargeflowthroughamicrowaveoven.Computethe size of

ID: 1456788 • Letter: 1

Question

1. During60secondsofuse,260Cofchargeflowthroughamicrowaveoven.Computethe size of the electric current. A

2. A current of 0.9 A goes through an electric motor for 4 min. How many coulombs of charge flow through it during that time? C 4.

3. Acurrentof29.9Aflowsthroughanelectricheateroperatingon120V.Whatisthe heater's resistance?

4. The lightbulb used in a computer projector has a resistance of 90 . What is the current through the bulb when it is operating on 120 V? A V A

5. A 900- resistor is connected to a variable-voltage power supply.

a. What voltage is necessary to cause a current of 0.5 A in the resistor?

b. Whatcurrentflowsintheresistorwhenthevoltageis21V?

6. A current of 18.0 A flows through an electric heater operating on 120 V. Compute the power consumption of the electric heater.

7. An electric clothes dryer is rated at 6,000 W. How much energy in kWh does it use in 35 min? (3,600,000 J = 1 kWh). W kWh

Multiple questions I am allowed to answer only 1 question at a time According to the chegg guidelines.

2) A current of 0.9 A goes through an electric motor for 4 min. How many coulombs of charge flow through it during that time?

Answer) Time = 4 minutes = 4 * 60 = 240 seconds

Current = 0.9 A

Charge ( 0.9 A ) * ( 240 s ) = 216 C ================ANSWER)

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