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10th CBSE
IMPORTANT
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A wire of resistance 2R is cut into two equal pieces. The two parts are joined in parallel. What is the resistance of the combination?

Important Questions on Electricity

EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 8
What happens to the current when resistances are connected in series?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 9
If three resistors 10 Ω, 20 Ω and 30 Ω are connected in series, what will be the equivalent resistance?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 10
How many 440 Ω resistors are needed to carry 5 A in a 220 V line in parallel?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 1
How are the lights connected in your house?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 2
Give reason: "Different electrical appliances in a domestic circuit are connected in parallel."
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 3
Draw a circuit diagram showing two 4 V lamps can be lit brightly by two 2 V cells.
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 4
Why series arrangement is not used for connecting domestic electrical appliances in a circuit?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 3 - Part -1>Electricity>Q 5
In parallel connection, the current from the power supply is high whereas it is low in series connection. Why?