EASY
Lower Secondary Stage 9
IMPORTANT
Earn 100

Design and make a series circuit in which one switch controls two lamps. Draw the circuit diagram for this.

Important Questions on Electrostatics and Electric Currents

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Making series and parallel circuits>Q A5
Design and make a parallel circuit in which each lamp can be controlled separately (hint: you will need two switches). Draw the circuit diagram for this.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 9>Q 1
In a series circuit with two lamps, what would happen if one lamp broke?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 9>Q 2
In a parallel circuit with two lamps, each on a separate branch of the circuit, what would happen if one lamp broke?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 9>Q 3
Which type of circuit should be used for controlling the lights in a house?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Measuring the current in circuits>Q A1

Make the circuit shown in the figure. Place the ammeter at the point 1 (before the lamps), point 2 (between the lamps) and point 3 (after the lamps) and measure the current.

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What do you notice about the current around the circuit?

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Measuring the current in circuits>Q A2

Make the circuit shown in the figure. 

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The electrons leaving the battery have lots of energy. What happens to this energy as the electrons go through the lamps?

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Measuring the current in circuits>Q A3

Make the circuit shown in the figure given below.

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Investigate how the current varies around the circuit.

What do you notice about the current around this circuit?

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Measuring the current in circuits>Q A4

Which loop gets most current? Why do you think more electrons take this route?

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