MEDIUM
10th West Bengal Board
IMPORTANT
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If the diameter of a wire is doubled, its resistance becomes -

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Important Questions on Current Electricity

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 5
The SI unit of electrical conductivity is -
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 6
In parallel combination of resistances -
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 7
The current through a 60 W bulb rated for 250 V is -
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 8
The electric meter in household electric connection records -
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 9
The speed of rotation of an electric motor can be increased by increasing _____.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 10
In a three-pin plug, the pin on the left is for _____.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 1
-1.6×10-19 coulomb is the charge of an _____.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 6 - Current Electricity>EXERCISE>Q 2
In _____ combination, the equivalent resistance is less than the individual resistance.