If 12V battery maintains a 4.5A current through a resistor what is the resistance of the resistor?

2.7ohms

Explanation:

Given parameters:

Voltage of the battery  = 12V

Current  = 4.5A

Unknown:

Resistance of the resistor  = ?

Solution:

From Ohm's law, we know that;

          V  = IR

V is the voltage

I is the current

R is the resistance

  So;

        R  =   =    = 2.7ohms

all of the answers are correct.

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explanation:

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