The manufacturer of a 12V car headlight specifies it will draw a current of 6A.?

  • Thread starter Thread starter Maria C
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Maria C

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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. The question is how much current will flow in the Ammeter if it is connected in parallel with the headlight.

I know that an ammeter should be connected in series, but since they are asking me this I assume the ammeter to be just another resistance. For the parallel connection I know that I = V / R
So replacing I get I = 12/ .1 = 120 A

This seems really high though. so Im not sure, any help would be greatly appreciated.
 
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