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ECAT - Practice Test - Physics - Current Electricity Quiz

Attempt 10 MCQs on ECAT - Practice Test - Physics - Current Electricity | Quiz 4

31. What is the typical drift velocity of electrons?



32. What is current density?



33. For which materials is Ohm's law valid?



34. What is the V-I characteristic of an ohmic resistor?



35. How does resistance depend on cross-sectional area?



36. How does resistance depend on length?



37. What is the voltage across a 10 Ω resistor with 2 A current?



38. What is the power of a 12 V battery supplying 3 A?



39. What is the equivalent resistance of 4 Ω and 6 Ω in series?



40. What is the equivalent resistance of 4 Ω and 6 Ω in parallel?



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