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In a parallel connection, if one resistor breaks (open circuit) then _____.
Other branches keep working
Battery gets damaged
Voltage becomes zero
The entire circuit stops working
The entire circuit stops working
In a parallel circuit, if one branch breaks, the current flow is interrupted only in that specific branch. The other branches remain connected to the voltage source and continue to operate normally.
In a parallel circuit, if one branch breaks, the current flow is interrupted only in that specific branch. The other branches remain connected to the voltage source and continue to operate normally.
Think of a house with multiple lamps in parallel; if one light bulb burns out, the other lamps in the room stay lit because they have independent paths for electricity.
V=I1тАЛR1тАЛ=I2тАЛR2тАЛ=...=VsourceтАЛ тАФ Constant voltage across parallel branches
ReqтАЛ1тАЛ=R1тАЛ1тАЛ+R2тАЛ1тАЛ+...+RnтАЛ1тАЛ тАФ Equivalent resistance formula
In a parallel connection, all components are connected across the same potential difference (V). According to Kirchhoff's Current Law, the total current is the sum of currents through each branch (ItotalтАЛ=I1тАЛ+I2тАЛ+...+InтАЛ). If one resistor opens, the current through that branch becomes zero, but because each branch provides an independent path, the remaining branches maintain their potential difference and operate independently.
Voltage remains constant across all parallel branches.
The total current decreases if one branch is removed.
Parallel circuits are standard for domestic electrical wiring.
Independent operation of appliances
Constant voltage supply
Total resistance decreases with more parallel branches
Increased complexity in wiring compared to series circuits
Domestic lighting and appliance circuits
Power distribution grids
Standard household voltage in India is 230V.
Option D is incorrect because the entire circuit does not stop working; it continues to function through the remaining unbroken branches. The question provided likely has an error in the 'Official Answer Key', as option A is scientifically accurate for parallel circuits.
A is correct тАФ In a parallel circuit, each branch provides an independent path for current, allowing other components to continue functioning even if one branch breaks.
Always remember: Series = Current constant, Parallel = Voltage constant. If a device breaks, identify if the path is singular (series) or branched (parallel) to predict the outcome.