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kapopka88

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The manufacturer of a 12V car headlight specifies it will draw a current of 6A. You would like to check this claim with an ammeter designed to measure currents up to 10A and having a resistance of 0.1 Ohms. Which of the two figures below represents a circuit where the ammeter correctly measures the current in the headlight?

OA-Ammeter.bmp

a. Circuit a.

b. Circuit b.

How much current (in A) would flow in the ammeter for Circuit a?

i thought A would equal V/R, which in this case i thought would be 12/.1= 120 amps... but this is not correct. please help!

How much current (in A) flows through the ammeter for Circuit b?

OA-Ammeter.bmp

a. Circuit a.

b. Circuit b.

How much current (in A) would flow in the ammeter for Circuit a?

i thought A would equal V/R, which in this case i thought would be 12/.1= 120 amps... but this is not correct. please help!

How much current (in A) flows through the ammeter for Circuit b?

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