C Exercise 21.12 A 55 electric heater is designed to run using a 120 ac source.

Question

C Exercise 21.12
A 55 electric heater is designed to run using a 120 ac source.


Part A
Find its peak current.
Express your answer using two significant figures.

I0=____________A

Part B
Find its peak voltage.
Express your answer using two significant figures.
V0=__________V





Part C
How much energy will you be billed for in a 30-day month if it operates 1.0 per day?
Express your answer using two significant figures.

U=__________J








C Exercise 21.12
A 55 electric heater is designed to run using a 120 ac source.


Part A
Find its peak current.
Express your answer using two significant figures.

I0=____________A

Part B
Find its peak voltage.
Express your answer using two significant figures.
V0=__________V





Part C
How much energy will you be billed for in a 30-day month if it operates 1.0 per day?
Express your answer using two significant figures.

U=__________J







C Exercise 21.12
A 55 electric heater is designed to run using a 120 ac source.


Part A
Find its peak current.
Express your answer using two significant figures.

I0=____________A

Part B
Find its peak voltage.
Express your answer using two significant figures.
V0=__________V





Part C
How much energy will you be billed for in a 30-day month if it operates 1.0 per day?
Express your answer using two significant figures.

U=__________J






C Exercise 21.12
A 55 electric heater is designed to run using a 120 ac source.


Part A
Find its peak current.
Express your answer using two significant figures.

I0=____________A

Part B
Find its peak voltage.
Express your answer using two significant figures.
V0=__________V





Part C
How much energy will you be billed for in a 30-day month if it operates 1.0 per day?
Express your answer using two significant figures.

U=__________J





C Exercise 21.12
A 55 electric heater is designed to run using a 120 ac source.


Part A
Find its peak current.
Express your answer using two significant figures.

I0=____________A

Part B
Find its peak voltage.
Express your answer using two significant figures.
V0=__________V





Part C
How much energy will you be billed for in a 30-day month if it operates 1.0 per day?
Express your answer using two significant figures.

U=__________J




A 55 electric heater is designed to run using a 120 ac source. Part A Find its peak current. Express your answer using two significant figures.
I0=____________A

Part B I0=____________A

Part B
Part B Find its peak voltage. Express your answer using two significant figures. V0=__________V





Part C




Part C



Part C


Part C

Part C
Part C
Part C
Part C How much energy will you be billed for in a 30-day month if it operates 1.0 per day? Express your answer using two significant figures.
U=__________J




U=__________J

Explanation / Answer

C Exercise 21.12 A 55 electric heater is designed to run using a 120 ac source. Part A Find its peak current. Irms=55/120=0.45 so that I_peak=0.65(A) Express your answer using two significant figures. I0=0.65A Part B Find its peak voltage. Express your answer using two significant figures. V0=120*sqrt(2)=170V Part C How much energy will you be billed for in a 30-day month if it operates 1.0 per day? Express your answer using two significant figures. U=55*30=1650J

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