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A set of electric trains are powered by a 9 V battery. What is the resistance of the trains if they draw 4.0 A of current?
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7 votes
A set of electric trains are powered by a 9 V battery. What is the resistance of the trains if they draw 4.0 A of current?

User Hobberwickey
by
3.4k points

1 Answer

6 votes

Answer:

2.25 Ω

Step-by-step explanation:

Standard equation

V = IR re-arrange to

V /I = R then sub in the values given

9 / 4 = 2.25 Ω

User Pravin Tate
by
3.8k points
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