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NCAT Practice Test - Practice Test - Physics - Current Electricity - 2026 Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Physics - Current Electricity (Year 2026) | Quiz 5

41. What is the typical magnitude of drift velocity of electrons in a conductor?



42. What is the formula for conductance?



43. What is the conductance of a 100 Ω resistor?



44. Energy consumed by a 60 W bulb in 10 hours is:



45. What is constant in a series circuit?



46. What is constant in a parallel circuit?



47. Calculate resistance of copper wire: L=10 m, A=2×10⁻⁶ m², ρ=1.7×10⁻⁸ Ω·m.



48. If current through a resistor is halved, power dissipated becomes:



49. If voltage across a resistor is doubled, power becomes:



50. Short-circuit current of a cell with emf 2 V, r=0.5 Ω is:



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