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  • The storage battery of a car has an emf of 12 V. If the i...
Multiple choice

The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4, what is the maximum current that can be drawn from the battery?

  1. 30 A

  2. 0.033 A

  3. 48 A

  4. 4.8 A

  5. 0.33 A

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

According to  Ohm’s law E = Ir I = E/r = 12/0.4 = 30 A

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