If 2 A current passes through a resistor when connected to a certain battery. If the resistance is replaced by double the resistance, then the current will become:
Correct answer: D. 1 A
- A. 2 A
- B. 4 A
- C. 6 A
- D. 1 A
Explanation
Formula V/I=R, V remains constant so if the resistance is doubled then current would be halved, V / 0.5 I=2R. Since initial current was 2A the new current would be 1A.
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