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10th Uttar Pradesh Board
IMPORTANT
Earn 100

The SI unit of electrical conductivity is . (siemens per metre / ohm per metre)

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Important Questions on Electricity

EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 32

A cylindrical conductor of length l and uniform area of cross-section A has resistance R. Another conductor of length 2l and resistance R of the same material has area of cross-section

EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 33
On what principle is the working of electric fuse based?
EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 34
Write down the relation between heat produced H in a conductor of resistance R through which current I passes for t seconds.
EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 35
What is nichrome? State its one use.
EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 36
If the current passing through a conductor is doubled, what will be the change in heat produced?
EASY
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 37
Name two effects produced by electric current.
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10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 38

In the following circuits, the heat produced in the resistor or combination of resistors connected to a 12 V battery will be

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MEDIUM
10th Uttar Pradesh Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Electricity>Exercise>Q 39
In an electrical circuit, two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be: