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# Solutions 12. Electricity - Additional Questions With Solutions | Class 10 Science - Toppers Study

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## Solutions 12. Electricity - Additional Questions With Solutions | Class 10 Science - Toppers Study

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### You can Find Science solution Class 10 Chapter 12. Electricity

• All Chapter review quick revision notes for chapter 12. Electricity Class 10
• NCERT Solutions And Textual questions Answers Class 10 Science
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Chapter 12 Science class 10

### Additional Questions With Solutions class 10 Science Chapter 12. Electricity

• Solutions 12. Electricity - Additional Questions With Solutions | Class 10 Science - Toppers Study
• Class 10 Ncert Solutions
• Solution Chapter 12. Electricity Class 10
• Solutions Class 10
• Chapter 12. Electricity Additional Questions With Solutions Class 10

## Solutions 12. Electricity - Additional Questions With Solutions | Class 10 Science - Toppers Study

Chapter-12. Electricity

Q1: What is an electric circuit?

Ans: A continuous and closed path of an electric current is called an electric circuit.

Q2: Name the instrument which measures electric current in a circuit.

Ans: Ammeter.

Q3: In which order, an ammeter is connected in a circuit?

Ans: In series.

Q4: In which direction does the electric current flow in a circuit?

Ans: the electric current flows in the circuit from positive terminal of the cell to negative terminal of the cell.

Q5: Name the device which produces potential difference in a wire?

Ans: Cell or battery.

Q6: What is potential difference?

Ans: The electrons move only if there is a difference of electric pressure in a conducting metallic wire. This difference of electric pressure is called potential difference.

Q7: Two bulbs of 100 W and 25 W are connected in series to 200 V-AC mains. Which bulb glows brightly? Explain your observation.

Q8: Why does the element of a room heater become red hot but the lead wires remain cold?

Ans:  The element of a room heater has high resistance. According to jule’s law of heating , increasing in resistance cause increasing in heat. While the device wire has not so highly resistance.

Q9: Calculate the number of electrons constituting one coulomb of charge.

Ans: 6 x1018 electrons.

Q10: State the Ohm’s Law.

Ans: The electric current flowing through a metallic wire is directly proportional to the potential difference V, across its ends provided its temperature remains the same. This is called Ohm’s law.