grade10

Refer to Circuits A and B below and answer the questions that follow. 11.1 Define the term emf. (2) 11.2 Calculate the total resistance of Circuit A. (2) 11.3 Consider Circuit B. 11.3.1 Write down the reading on A2. (1) 11.3.2 Calculate the reading on V1. (3) 11.4 If a third resistor (1,5 Ω) is … Read more

A neutral plastic ruler becomes charged when it is rubbed with a woollen cloth. After rubbing, the ruler has a charge of -3,5 x 10-15 C. 10.1 Distinguish between a neutral object and a charged object. (2) 10.2 Does the ruler GAIN or LOSE electrons? (1) 10.3 Calculate the number of electrons transferred during the … Read more

Two magnets are placed so that their north poles face each other. 9.1 Explain the term magnetic field. (2) 9.2 Draw the magnetic field pattern between the two north poles of the magnets. (3) 9.3 The graph below shows how the magnetic force varies with distance between the magnets. 9.3.1 What is the mathematical relationship … Read more