In the following circuit using Kirchhoff's find: a) The current in each branch of the circuit. b) The voltage across each branch. c) State whether each battery is charging or discharging

Alternating current is __________. Select one: A. AN ALTERNATING FLOW OF ELECTRONS B. ELECTRONS REVERSING THEIR FLOW AT REGULAR INTERVALS C. THE MOST COMMONLY USED CURRENT D. ALL OF THE ABOVE

The pictures show two electrical devices used in the home. A kettle plugged into the mains socket, connected to the national grid. For each case i) ii) A battery operated torch Describe the motion of the electrons through the device Explain one mechanism by which the potential difference could be generated

2. A bank of nickel-cadmium cells is used as the emergency lighting supply for a hospital. There are 100 cells connected in series and each has an A-hr rating of 120 A-hr. The bank has to be replaced, and the manufacturer is no longer supplying nickel-cadmium cells. It is decided to replace the cells with lead-acid cells. How many lead-acid cells will be required if each has an A-hr rating of 60 A-hr, and how should they be connected?