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Which of the following statements is true for the appliances used in domestic circuits:
Heavy appliances like AC, Geyser are connected in parallel and light appliances like bulbs, tubelights are connected in series
Heavy appliances like AC, Geyser are connected in series and light appliances like bulbs, tubelights are connected in parallel
All the appliances are connected in parallel
All the appliances are connected in series
All the appliances are connected in parallel
In domestic electrical circuits, all appliances are connected in parallel. This arrangement ensures that each appliance receives the same operating voltage (typically 220V-240V in India) and can be operated independently using individual switches.
In domestic electrical circuits, all appliances are connected in parallel. This arrangement ensures that each appliance receives the same operating voltage (typically 220V-240V in India) and can be operated independently using individual switches.
Think of parallel circuits like a multi-lane highway where cars (electrons) can choose different paths to reach their destination; if one lane is blocked, traffic continues to flow in other lanes.
P-I-C-V: Parallel - Individual control - Constant Voltage.
VtotalтАЛ=V1тАЛ=V2тАЛ=VnтАЛ тАФ The voltage remains same in parallel connection
ReqтАЛ1тАЛ=R1тАЛ1тАЛ+R2тАЛ1тАЛ+...+RnтАЛ1тАЛ тАФ Equivalent resistance in parallel decreases as more devices are added
In a parallel circuit, the voltage across each component is constant, while the total current drawn is the sum of currents through individual branches. If one appliance is switched off or fails, it does not interrupt the circuit or affect the performance of other appliances. Unlike a series circuit, where adding more components would increase total resistance (ReqтАЛ=R1тАЛ+R2тАЛ+...) and reduce individual voltage, parallel connection maintains the potential difference V across every device.
Parallel connections ensure full supply voltage for all appliances.
Individual switching is possible in parallel circuits.
Total resistance decreases when more appliances are added in parallel, allowing higher total current.
Series circuits are avoided in homes because a fault in one device would shut down the entire circuit.
Independent operation of each appliance.
Constant voltage supply to all devices.
Low total circuit resistance.
Domestic wiring systems.
Office and commercial lighting systems.
Domestic power lines in India operate at a frequency of 50 Hz and a voltage of 220-240 V.
Option D (series) is incorrect because if one bulb blows out, the entire circuit breaks.
Options A and B suggest a mix or incorrect distribution of wiring logic, which would cause inconsistent voltage drops.
C is correct тАФ All appliances are connected in parallel to ensure constant voltage supply and independent switching for every device.
Always remember that in domestic circuits, 'Parallel' is the key word for safety and independent control; 'Series' is only used in specialized components like fuses or miniature circuit breakers (MCBs).
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