alleryStart learning →Electric current is defined as the rate of flow of:
- power
- electric charge
- voltage
- resistance
Show answer and solution
Correct answer: B. electric charge
Current is the rate of flow of electric charge: I = Q/t.
Indian Navy 10+2 B.Tech Cadet Electricity — practice questions
Explore 3 free Electricity questions in Indian Navy 10+2 B.Tech Cadet Science. Open each question or exercise to read its content, reference answers and available explanation.
Practise Electricity with Quill →Electricity questions and exercises with answers
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Worked practice questions
The SI unit of electrical resistance is the:
- ampere
- ohm (Ω)
- joule
- volt
Show answer and solution
Correct answer: B. ohm (Ω)
The SI unit of resistance is the ohm (Ω).
Two bulbs of 60 W and 100 W are designed for 220 V. Which has higher resistance?
- The 60 W bulb
- Same resistance
- Cannot tell
- The 100 W bulb
Show answer and solution
Correct answer: A. The 60 W bulb
R = V²/P, so R is inversely proportional to P at fixed V. The lower-wattage bulb has the higher resistance: 60 W bulb has R = 220²/60 ≈ 807 Ω vs 100 W bulb at 484 Ω.
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