David Sang Solutions for Chapter: Electric Circuits, Exercise 3: Questions

Author:David Sang

David Sang Physics Solutions for Exercise - David Sang Solutions for Chapter: Electric Circuits, Exercise 3: Questions

Attempt the free practice questions on Chapter 19: Electric Circuits, Exercise 3: Questions with hints and solutions to strengthen your understanding. Cambridge IGCSE® Physics Coursebook Second Edition solutions are prepared by Experienced Embibe Experts.

Questions from David Sang Solutions for Chapter: Electric Circuits, Exercise 3: Questions with Hints & Solutions

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 19 - Electric Circuits>Questions>Q 19.5

What is the combined resistance of two 20 Ω resistors connected in series? 

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 19 - Electric Circuits>Questions>Q 19.6

Three resistors are connected in series with a battery, as shown.

Question Image

Resistor A has the greatest resistance of the three. The current through A is 1.4 A . What can you say about the currents through B and C?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 19 - Electric Circuits>Questions>Q 19.7

What is the combined resistance of three 30 Ω resistors connected in series?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 19 - Electric Circuits>Questions>Q 19.8

Two resistors are to be connected to form a potential-divider circuit. Should they be connected in series or in parallel with each other?

EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 19 - Electric Circuits>Questions>Q 19.8

State briefly the function of a potential- divider circuit.