EASY
10th Manipur Board
IMPORTANT
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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 -

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Important Questions on Electricity

EASY
10th Manipur Board
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
10th Manipur Board
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 -
EASY
10th Manipur Board
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
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 26
Joule/coulomb is the same as -
EASY
10th Manipur Board
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
10th Manipur Board
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 -
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 29
Why is the series arrangement of components not used for domestic circuits? Explain.
EASY
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 8 - Electricity>EXERCISES>Q 30
Why are copper and aluminium wires usually used for transmission of electricity? Explain.