Indian Navy 10+2 B.Tech Cadet Electricity — practice questions

Explore 3 free Electricity questions in Indian Navy 10+2 B.Tech Cadet Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Electricity with Quill →

Electricity questions and exercises with answers

Showing questions 1–3 of 3.

Two bulbs of 60 W and 100 W are designed for 220 V. Which has higher resistance?Read the answer and worked solution →CLASS10 · Physics · Tap the Electrical UnitsRead the answer and worked solution →CLASS10 · Physics · Ohm's Law — Gap FillRead the answer and worked solution →

Worked practice questions

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.

Open this question →

CLASS10 · Physics · Tap the Electrical Units

Read exercise and reference answers

Other terms

Pascal
Kelvin
Newton
Mole
Lumen
Hertz

Matching terms

Volt
Ampere
Ohm
Watt
Coulomb
Joule
Henry
Farad

Instructions

Pop only units of electrical quantities.

Open this exercise →

CLASS10 · Physics · Ohm's Law — Gap Fill

Read exercise and reference answers

Missing parts

Answer
I R
Choices
1. I R
2. I / R
3. R / I
4. I² R
Answer
ohm
Choices
1. volt
2. ampere
3. watt
4. ohm

Complete the statement

Ohm's law: V = {0}. SI unit of resistance is the {1}.