6 Questions
Which of the following materials has the highest electrical conductivity?
Copper
In which direction does conventional current flow?
From positive to negative
What is the SI unit of electric current?
Ampere
What is the relationship between current and resistance in a circuit?
Current is inversely proportional to resistance
What effect does doubling the voltage have on the current in a circuit with constant resistance?
The current doubles
How does the thickness of a wire affect its electrical resistance?
Thicker wire has lower resistance
Test your knowledge of electric current in Physics Class 9 with questions about SI unit of electric current, electrical conductivity, and conventional current direction.
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