02.4) Calculate the charge and give the unit when a current of 0.15 A flows around the circuit for
20 seconds.
[3 marks)
02.5) Calculate how much energy is transferred from the
battery in 20 seconds. Use your answer from 02.4.
[2 marks]

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material