9.6 Parallel circuits
Page No: 190 & 191
Series and parallel circuits
• In a series circuit there is only one loop.
• In a parallel circuit there is more than one loop. The cell or battery
pushes the current around each loop.
Parallel circuit
• Each bulb is connected directly to the battery. It
works independently. Each bulb can be turned on or
off independently.
• The different loops of the circuit are sometimes
called branches. Parallel circuits are sometimes
called branching circuits.
• In a series circuit if one lamp breaks then all the
lamps go off. In a parallel circuit if one lamp breaks
then the other lamps will still work.
Current in parallel circuits
• In a parallel circuit the the sum of the currents
through each path is equal to the total current
that flows from the source.
Current in A1 = Current in A4 = Current in A2 + Current in A3
Assignment
• Solve questions on textbook page no: 191.
• Solve practice book page no: 88.