Electricity Class 10 Worksheet Science Chapter 11

Q1: Multiple Choice Questions (MCQs)

(i) What is the positive terminal of an electric cell?
(a) Metal disc at the bottom
(b) Metal cap on the top
(c) Tungsten filament
(d) Thick wires

(ii) What is the purpose of a resistor in an electric circuit with an LED?
(a) Increases current flow
(b) Prevents excess current
(c) Enhances light production
(d) Acts as a switch

(iii) What is the primary purpose of argon gas in an electric bulb?
(a) Produces light
(b) Prevents heat
(c) Shields the filament
(d) Increases energy efficiency

(iv) Which materials are good conductors of electricity?
(a) Plastics and fiberglass
(b) Copper and silver
(c) Mica and ceramics
(d) Argon gas and tungsten

(v) What is the function of a switch in an electric circuit?
(a) Increases current flow
(b) Completes or breaks the circuit
(c) Prevents electricity transmission
(d) Produces light in the circuit

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Q2: Fill in the Blanks

(i) An electric cell converts ____________ energy into electrical energy.
(ii) The filament of an electric bulb is made of ____________ metal.
(iii) LEDs consume ____________ electricity compared to ordinary bulbs.
(iv) ____________ is used as an electric insulator.
(v) ____________ is a good conductor of electricity commonly used in electric wires.

Q3: Match the Column (In a Table)

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Q4: True/False

(i) An electric bulb fuses when its filament breaks.
(ii) Plastics and fiberglass are good conductors of electricity.
(iii) The positive terminal of an LED must be connected to the negative terminal of an electric cell.
(iv) Power plants use turbines to generate electricity.
(v) A switch in the 'OFF' position completes the electric circuit.

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