The equivalent resistance of a circuit that contains two 50.0 resistors connected in parallel with a 12.0 V battery is 25.0, therefore the correct option is B.
What is resistance?
Resistance is the obstruction of electrons in an electrically conducting material.
The mathematical relation for resistance can be understood with the help of the empirical relation provided by Ohm's law.
V=IR
For calculating equivalent resistance in parallel combination.
1/Re = 1/R1 + 1/R2
Re = (R1 R2)/(R1 +R2)
Re =(5050)/(50+50)
Re = 25.0
The resultant equivalent resistance is 25.0
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