EASY
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IMPORTANT
Earn 100

An electric kettle rated at 220 V, 2.2 kW works for 3 hours. Find the energy consumed and current drawn.

Important Questions on Electricity

EASY
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 21
A piece of nichrome wire of resistance R is cut into four equal parts. These parts are then combined in parallel. If R' is the equivalent resistance of the parallel combination then the ratio RR' will be -
EASY
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 22
The term that does not represent the electrical power of a circuit is -
EASY
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 23
An electric bulb is rated 220 V; 100 W. The same is operated at 110 V due to load shedding. The actual power consumed will be -
HARD
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 24
Two identical heating coils are first connected in series and then in parallel across the same potential difference. The ratio of heat generated in series to that of parallel would be -
EASY
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 25
A positive charge free to move is released from rest. It will move towards the regions of -
EASY
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 26
Joule/coulomb is the same as -
EASY
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 27
An ammeter is always connected in (i) _______ and a voltmeter in (ii)  ______. The proper words for the empty places are respectively.
MEDIUM
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IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 28
Three equal resistances, when combined in series have an equivalent resistance of 90 Ω. Their equivalent resistance when combined in parallel will be -