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Questions and Answers
What does Ohm's law describe?
What does Ohm's law describe?
- The behavior of magnetic fields in a circuit
- The relationship between resistance, current, and voltage in an electrical circuit (correct)
- The effects of temperature on electrical conductivity
- The interaction of light and semiconductors
What happens to the current in a circuit if the resistance is increased?
What happens to the current in a circuit if the resistance is increased?
- The current remains unchanged
- The current decreases (correct)
- The current fluctuates randomly
- The current increases
If the voltage in a circuit is doubled, what happens to the current if the resistance remains unchanged?
If the voltage in a circuit is doubled, what happens to the current if the resistance remains unchanged?
- The current halves
- The current doubles (correct)
- The current remains the same
- The current quadruples
What does the symbol 'I' represent in Ohm's law?
What does the symbol 'I' represent in Ohm's law?
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